fix: 优化客户端错误提示和校验诊断信息

.editorconfig

@@ -0,0 +1,6 @@
+root = true
+
+[*]
+charset = utf-8-bom
+trim_trailing_whitespace = true
+insert_final_newline = true

.gitignore

@@ -1,70 +1,73 @@
-# Operating systems and editors
-.DS_Store
-Thumbs.db
-Desktop.ini
-.vscode/
-.idea/
-.vs/
-*.suo
-*.user
-*.userosscache
-*.sln.docstates
-
-# Temporary files
-*.tmp
-*.temp
-*.bak
-*.swp
-*.log
-*~
-
+# Operating systems and editors
+.DS_Store
+Thumbs.db
+Desktop.ini
+.vscode/
+.idea/
+.vs/
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# Temporary files
+*.tmp
+*.temp
+*.bak
+*.swp
+*.log
+*~
+
 # Private requirement / handover documents
 *.pdf
 *.doc
 *.docx
-
-# C/C++ generated artifacts
-*.obj
-*.o
-*.pdb
-*.ilk
-*.idb
-*.tlog
-*.lastbuildstate
-*.exp
-*.lib
-*.dll
-*.exe
-
-# Build outputs
-out/
-build/
-build-*/
-cmake-build-*/
-.cmake/
-CMakeFiles/
-CMakeCache.txt
-CMakeSettings.json
-CMakeUserPresets.json
-Testing/
-
+private/
+pdf_requirements.txt
+
+# C/C++ generated artifacts
+*.obj
+*.o
+*.pdb
+*.ilk
+*.idb
+*.tlog
+*.lastbuildstate
+*.exp
+*.lib
+*.dll
+*.exe
+
+# Build outputs
+out/
+build/
+build-*/
+cmake-build-*/
+.cmake/
+CMakeFiles/
+CMakeCache.txt
+CMakeSettings.json
+CMakeUserPresets.json
+Testing/
+
 # Third-party/business binary drops and generated packages
+thirdparty/
 App/
 dist/
 *.zip
-*.tar
-*.tar.gz
-*.tgz
-*.7z
-*.rar
-
-# Local runtime state and credentials
-config/app_config.json
-config/client_identity.dat
-config/local_state.json
-config/version_policy.dat
-config/*.local.json
-config/*private*.pem
-config/*private*.key
-update/
-update_temp/
+*.tar
+*.tar.gz
+*.tgz
+*.7z
+*.rar
+
+# Local runtime state and credentials
+config/app_config.json
+config/client_identity.dat
+config/local_state.json
+config/version_policy.dat
+config/*.local.json
+config/*private*.pem
+config/*private*.key
+update/
+update_temp/

Bootstrap/CMakeLists.txt

@@ -1,6 +1,20 @@
 project(Bootstrap LANGUAGES CXX)
 
-add_executable(Bootstrap WIN32 main.cpp)
+add_executable(Bootstrap
+    main.cpp
+    ${CMAKE_SOURCE_DIR}/i18n/update-client.qrc
+    ${CMAKE_SOURCE_DIR}/config/server_config.qrc
+)
 target_compile_features(Bootstrap PRIVATE cxx_std_17)
-target_compile_definitions(Bootstrap PRIVATE UNICODE _UNICODE)
-target_link_libraries(Bootstrap PRIVATE shell32)
+target_link_libraries(Bootstrap PRIVATE Qt5::Core Qt5::Widgets)
+
+if(WIN32)
+    set_target_properties(Bootstrap PROPERTIES WIN32_EXECUTABLE TRUE)
+    get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)
+    get_filename_component(QT_BIN_PATH "${QT_WINDEPLOYQT_EXE}" DIRECTORY)
+    set(WINDEPLOYQT "${QT_BIN_PATH}/windeployqt.exe")
+    add_custom_command(TARGET Bootstrap POST_BUILD
+        COMMAND ${WINDEPLOYQT} $<IF:$<CONFIG:Debug>,--debug,--release> $<TARGET_FILE:Bootstrap>
+        COMMENT "Deploy Qt runtime for Bootstrap"
+    )
+endif()

Bootstrap/main.cpp

@@ -1,190 +1,203 @@
-#include <windows.h>
-#include <shellapi.h>
-#include <filesystem>
-#include <chrono>
-#include <cstdlib>
-#include <fstream>
-#include <string>
-#include <thread>
-#include <vector>
+#include <QApplication>
+#include <QCoreApplication>
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QMessageBox>
+#include <QProcess>
+#include <QTextStream>
+#include <QThread>
+#include <QTranslator>
+#include <QVector>
 
-namespace fs = std::filesystem;
-
-static std::wstring quote(const std::wstring& value)
+struct PlanItem
 {
-    std::wstring result = L"\"";
-    unsigned backslashes = 0;
-    for (wchar_t ch : value) {
-        if (ch == L'\\') { ++backslashes; continue; }
-        if (ch == L'\"') {
-            result.append(backslashes * 2 + 1, L'\\');
-            result.push_back(L'\"');
-            backslashes = 0;
-            continue;
-        }
-        result.append(backslashes, L'\\');
-        backslashes = 0;
-        result.push_back(ch);
+    QChar operation;
+    QString relativePath;
+};
+
+static void showError(const QString& message)
+{
+    QMessageBox::critical(nullptr,
+                          QApplication::translate("Bootstrap", "Update Handoff Failed"),
+                          message);
+}
+
+static QString cleanRelativePath(const QString& value)
+{
+    QString path = QDir::fromNativeSeparators(value.trimmed());
+    if (path.isEmpty())
+        return {};
+
+    path = QDir::cleanPath(path);
+    if (path == "." || path == ".." || path.startsWith("../")
+        || path.contains("/../") || QDir::isAbsolutePath(path)
+        || path.contains(':')) {
+        return {};
     }
-    result.append(backslashes * 2, L'\\');
-    result.push_back(L'\"');
-    return result;
+    return path;
 }
 
-static std::wstring fromUtf8(const std::string& value)
+static QString joinPath(const QString& root, const QString& relativePath)
 {
-    if (value.empty()) return {};
-    const int size = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, value.data(),
-                                         static_cast<int>(value.size()), nullptr, 0);
-    if (size <= 0) return {};
-    std::wstring result(size, L'\0');
-    MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, value.data(),
-                        static_cast<int>(value.size()), result.data(), size);
-    return result;
+    return QDir(root).filePath(relativePath);
 }
 
-static bool safeRelative(const fs::path& path)
+static bool removeWithRetry(const QString& path)
 {
-    if (path.empty() || path.is_absolute() || path.has_root_name()) return false;
-    for (const auto& part : path)
-        if (part == L"..") return false;
-    return true;
-}
-
-static bool copyWithRetry(const fs::path& source, const fs::path& destination)
-{
-    std::error_code ec;
-    fs::create_directories(destination.parent_path(), ec);
+    // Windows 上主程序退出后，DLL/EXE 句柄可能还会短时间被系统占用。
+    // Bootstrap 用短重试等待文件释放，而不是一次失败就判定升级失败。
     for (int i = 0; i < 100; ++i) {
-        ec.clear();
-        fs::copy_file(source, destination, fs::copy_options::overwrite_existing, ec);
-        if (!ec) return true;
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
+        if (!QFileInfo::exists(path))
+            return true;
+        if (QFile::remove(path))
+            return true;
+        QThread::msleep(100);
+    }
+    return !QFileInfo::exists(path);
+}
+
+static bool copyWithRetry(const QString& source, const QString& destination)
+{
+    QDir().mkpath(QFileInfo(destination).absolutePath());
+    for (int i = 0; i < 100; ++i) {
+        QFile::remove(destination);
+        if (QFile::copy(source, destination))
+            return true;
+        QThread::msleep(100);
     }
     return false;
 }
 
-static bool removeWithRetry(const fs::path& path)
-{
-    std::error_code ec;
-    for (int i = 0; i < 100; ++i) {
-        ec.clear();
-        if (!fs::exists(path, ec)) return !ec;
-        if (fs::remove(path, ec)) return true;
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
-    }
-    return false;
-}
-
-static bool rollback(const fs::path& installDir, const fs::path& backupDir,
-                     const std::vector<fs::path>& paths)
+static bool rollback(const QString& installDir, const QString& backupDir,
+                     const QVector<QString>& paths)
 {
     bool success = true;
-    for (const auto& relative : paths) {
-        const fs::path destination = installDir / relative;
-        const fs::path backup = backupDir / relative;
-        std::error_code ec;
-        if (fs::exists(backup, ec)) {
-            if (!copyWithRetry(backup, destination)) success = false;
-        } else if (fs::exists(destination, ec) && !fs::remove(destination, ec)) {
+    for (const QString& relativePath : paths) {
+        const QString destination = joinPath(installDir, relativePath);
+        const QString backup = joinPath(backupDir, relativePath);
+        if (QFileInfo::exists(backup)) {
+            if (!copyWithRetry(backup, destination))
+                success = false;
+        } else if (QFileInfo::exists(destination) && !removeWithRetry(destination)) {
             success = false;
         }
     }
     return success;
 }
 
-static bool launchUpdater(const std::wstring& updater, const std::vector<std::wstring>& updateArgs,
-                          const std::wstring& result)
+static bool launchUpdater(const QString& updater, const QStringList& updateArgs,
+                          const QString& result)
 {
-    std::wstring command = quote(updater);
-    for (const auto& arg : updateArgs) command += L" " + quote(arg);
-    command += L" " + quote(L"--bootstrap-resume=" + result);
-    STARTUPINFOW si{};
-    si.cb = sizeof(si);
-    PROCESS_INFORMATION pi{};
-    std::vector<wchar_t> mutableCommand(command.begin(), command.end());
-    mutableCommand.push_back(L'\0');
-    const BOOL ok = CreateProcessW(updater.c_str(), mutableCommand.data(), nullptr, nullptr,
-                                   FALSE, 0, nullptr, fs::path(updater).parent_path().c_str(), &si, &pi);
-    if (ok) { CloseHandle(pi.hThread); CloseHandle(pi.hProcess); }
-    return ok == TRUE;
+    QStringList args = updateArgs;
+    args.append(QStringLiteral("--bootstrap-resume=%1").arg(result));
+    return QProcess::startDetached(updater, args, QFileInfo(updater).absolutePath());
 }
 
-int WINAPI wWinMain(HINSTANCE, HINSTANCE, PWSTR, int)
+static bool readPlan(const QString& planFile, QVector<PlanItem>* items, QVector<QString>* paths)
 {
-    int argc = 0;
-    LPWSTR* argv = CommandLineToArgvW(GetCommandLineW(), &argc);
-    if (!argv || argc < 11) {
-        MessageBoxW(nullptr, L"Bootstrap 参数不完整。", L"更新接管失败", MB_ICONERROR);
-        if (argv) LocalFree(argv);
+    QFile file(planFile);
+    if (!file.open(QIODevice::ReadOnly | QIODevice::Text))
+        return false;
+
+    QTextStream input(&file);
+    input.setCodec("UTF-8");
+    while (!input.atEnd()) {
+        const QString line = input.readLine();
+        if (line.size() < 3 || line.at(1) != QLatin1Char('\t')
+            || (line.at(0) != QLatin1Char('C') && line.at(0) != QLatin1Char('D'))) {
+            return false;
+        }
+
+        const QString relativePath = cleanRelativePath(line.mid(2));
+        if (relativePath.isEmpty())
+            return false;
+
+        items->append({line.at(0), relativePath});
+        paths->append(relativePath);
+    }
+    return true;
+}
+
+static bool isBootstrapSelfPath(const QString& relativePath)
+{
+    const QString fileName = QFileInfo(relativePath).fileName();
+    return fileName.compare(QStringLiteral("Bootstrap.exe"), Qt::CaseInsensitive) == 0
+        || fileName.compare(QStringLiteral("Bootstrap"), Qt::CaseInsensitive) == 0;
+}
+
+int main(int argc, char* argv[])
+{
+    QApplication app(argc, argv);
+
+    QTranslator translator;
+    if (translator.load(QStringLiteral(":/i18n/update-client_zh_CN.qm")))
+        app.installTranslator(&translator);
+
+    const QStringList arguments = QCoreApplication::arguments();
+    if (arguments.size() < 11) {
+        showError(QApplication::translate("Bootstrap", "Bootstrap arguments are incomplete."));
         return 2;
     }
-    const fs::path planFile = argv[1];
-    const fs::path installDir = argv[2];
-    const fs::path stagingDir = argv[3];
-    const fs::path backupDir = argv[4];
-    const std::wstring updater = argv[5];
-    const DWORD updaterPid = static_cast<DWORD>(_wtoi(argv[6]));
-    std::vector<std::wstring> updateArgs{argv[7], argv[8], argv[9], argv[10]};
-    const std::wstring mode = argc >= 12 ? argv[11] : L"install";
-    LocalFree(argv);
 
-    if (HANDLE process = OpenProcess(SYNCHRONIZE, FALSE, updaterPid)) {
-        WaitForSingleObject(process, 30000);
-        CloseHandle(process);
+    const QString planFile = arguments.at(1);
+    const QString installDir = arguments.at(2);
+    const QString stagingDir = arguments.at(3);
+    const QString backupDir = arguments.at(4);
+    const QString updater = arguments.at(5);
+    const QString updaterPid = arguments.at(6);
+    Q_UNUSED(updaterPid);
+    const QStringList updateArgs{arguments.at(7), arguments.at(8), arguments.at(9), arguments.at(10)};
+    const QString mode = arguments.size() >= 12 ? arguments.at(11) : QStringLiteral("install");
+
+    QThread::msleep(500);
+
+    QVector<PlanItem> items;
+    QVector<QString> paths;
+    if (!readPlan(planFile, &items, &paths)) {
+        showError(QApplication::translate("Bootstrap", "The update plan is missing or invalid."));
+        return 3;
     }
 
-    struct PlanItem { wchar_t operation; fs::path relative; };
-    std::ifstream input(planFile, std::ios::binary);
-    std::vector<PlanItem> items;
-    std::vector<fs::path> paths;
-    std::string line;
-    while (std::getline(input, line)) {
-        if (!line.empty() && line.back() == '\r') line.pop_back();
-        if (line.size() < 3 || line[1] != '\t' || (line[0] != 'C' && line[0] != 'D')) {
-            MessageBoxW(nullptr, L"更新计划操作格式无效。", L"更新接管失败", MB_ICONERROR);
-            return 3;
-        }
-        const fs::path relative(fromUtf8(line.substr(2)));
-        if (!safeRelative(relative)) {
-            MessageBoxW(nullptr, L"更新计划包含不安全路径。", L"更新接管失败", MB_ICONERROR);
-            return 3;
-        }
-        items.push_back({static_cast<wchar_t>(line[0]), relative});
-        paths.push_back(relative);
-    }
-
-    bool success = input.eof();
+    bool success = true;
     bool rolledBack = false;
-    fs::path failedPath;
-    if (mode == L"rollback") {
-        rolledBack = success && rollback(installDir, backupDir, paths);
+    QString failedPath;
+    if (mode == QStringLiteral("rollback")) {
+        rolledBack = rollback(installDir, backupDir, paths);
         success = false;
-    } else if (success) {
-        for (const auto& item : items) {
-            const fs::path& relative = item.relative;
-            if (_wcsicmp(relative.filename().c_str(), L"Bootstrap.exe") == 0) {
+    } else {
+        // Bootstrap 是替换文件的接力进程：Updater 先退出，Bootstrap 再覆盖安装目录。
+        // 它不会更新自身，避免正在运行的 Bootstrap 被覆盖导致升级中断。
+        for (const PlanItem& item : items) {
+            const QString& relativePath = item.relativePath;
+            if (isBootstrapSelfPath(relativePath)) {
                 success = false;
-                failedPath = relative;
+                failedPath = relativePath;
                 break;
             }
-            const bool itemOk = item.operation == L'C'
-                ? copyWithRetry(stagingDir / relative, installDir / relative)
-                : removeWithRetry(installDir / relative);
+
+            const bool itemOk = item.operation == QLatin1Char('C')
+                ? copyWithRetry(joinPath(stagingDir, relativePath), joinPath(installDir, relativePath))
+                : removeWithRetry(joinPath(installDir, relativePath));
             if (!itemOk) {
                 success = false;
-                failedPath = relative;
+                failedPath = relativePath;
                 break;
             }
         }
-        if (!success) rolledBack = rollback(installDir, backupDir, paths);
+        if (!success)
+            rolledBack = rollback(installDir, backupDir, paths);
     }
 
-    const std::wstring result = success ? L"success" : (rolledBack ? L"rolledback" : L"rollback-failed");
+    const QString result = success ? QStringLiteral("success")
+        : (rolledBack ? QStringLiteral("rolledback") : QStringLiteral("rollback-failed"));
     if (!launchUpdater(updater, updateArgs, result)) {
-        std::wstring message = L"无法重新启动 Updater.exe。";
-        if (!failedPath.empty()) message += L"\n失败文件：" + failedPath.wstring();
-        MessageBoxW(nullptr, message.c_str(), L"更新接管失败", MB_ICONERROR);
+        QString message = QApplication::translate("Bootstrap", "Cannot restart Updater.");
+        if (!failedPath.isEmpty()) {
+            message += QApplication::translate("Bootstrap", "\nFailed file: %1")
+                .arg(failedPath);
+        }
+        showError(message);
         return 4;
     }
     return (success || rolledBack) ? 0 : 5;

CMakeLists.txt

@@ -1,44 +1,128 @@
 cmake_minimum_required(VERSION 3.20)
 project(ClientAll LANGUAGES C CXX)
+
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
 if(MSVC)
+    # Source files should be saved as UTF-8 with BOM; compile source and
+    # execution charsets as UTF-8 instead of setting encodings in code.
     add_compile_options(/utf-8)
 endif()
-# Qt全局配置
+
+# Qt global config. Qt is intentionally not hard-coded here; configure it with
+# CMake-recognized environment variables such as CMAKE_PREFIX_PATH or Qt5_DIR.
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTOUIC ON)
 set(CMAKE_AUTORCC ON)
-set(CMAKE_PREFIX_PATH "C:\\Qt\\5.15.2\\msvc2019_64" ${CMAKE_PREFIX_PATH})
 find_package(Qt5 REQUIRED COMPONENTS Core Network Gui Widgets)
-# ========== OpenSSL 手动配置（完全抛弃find_package） ==========
-set(OPENSSL_ROOT_DIR "C:/Program Files/OpenSSL-Win64")
-set(OPENSSL_INC "${OPENSSL_ROOT_DIR}/include")
-set(OPENSSL_LIB_DEBUG "${OPENSSL_ROOT_DIR}/lib/VC/x64/MDd")
-set(OPENSSL_LIB_RELEASE "${OPENSSL_ROOT_DIR}/lib/VC/x64/MD")
-# 全局宏，所有子项目统一启用OpenSSL
+
+get_target_property(QT_QMAKE_EXECUTABLE Qt5::qmake IMPORTED_LOCATION)
+get_filename_component(QT_BIN_DIR "${QT_QMAKE_EXECUTABLE}" DIRECTORY)
+find_program(QT_LRELEASE_EXECUTABLE NAMES lrelease lrelease.exe HINTS "${QT_BIN_DIR}" REQUIRED)
+find_program(QT_LUPDATE_EXECUTABLE NAMES lupdate lupdate.exe HINTS "${QT_BIN_DIR}" REQUIRED)
+
+set(TRANSLATION_TS "${CMAKE_SOURCE_DIR}/i18n/update-client_zh_CN.ts")
+set(TRANSLATION_QM "${CMAKE_SOURCE_DIR}/i18n/update-client_zh_CN.qm")
+set(TRANSLATION_SCAN_DIRS
+    "${CMAKE_SOURCE_DIR}/Common"
+    "${CMAKE_SOURCE_DIR}/Bootstrap"
+    "${CMAKE_SOURCE_DIR}/Launcher"
+    "${CMAKE_SOURCE_DIR}/Updater"
+    "${CMAKE_SOURCE_DIR}/MainApp"
+)
+
+add_custom_command(
+    OUTPUT "${TRANSLATION_QM}"
+    COMMAND "${QT_LRELEASE_EXECUTABLE}" "${TRANSLATION_TS}" -qm "${TRANSLATION_QM}"
+    DEPENDS "${TRANSLATION_TS}"
+    COMMENT "Compile Qt translation: update-client_zh_CN.qm"
+    VERBATIM
+)
+add_custom_target(update_client_translations ALL
+    DEPENDS "${TRANSLATION_QM}"
+)
+
+add_custom_target(update_client_lupdate
+    COMMAND "${QT_LUPDATE_EXECUTABLE}"
+        ${TRANSLATION_SCAN_DIRS}
+        -extensions cpp,h
+        -no-obsolete
+        -ts "${TRANSLATION_TS}"
+    WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+    COMMENT "Update Qt translation source: update-client_zh_CN.ts"
+    VERBATIM
+)
+
+# Local-only third-party dependencies. The thirdparty directory is ignored by Git.
+# Windows can use thirdparty/OpenSSL-Win64. Linux normally uses system OpenSSL.
+set(THIRDPARTY_DIR "${CMAKE_SOURCE_DIR}/thirdparty" CACHE PATH "Local third-party dependency root")
+if(WIN32)
+    set(SIMCAE_OPENSSL_ROOT "${THIRDPARTY_DIR}/OpenSSL-Win64" CACHE PATH "OpenSSL Win64 root")
+    if(NOT EXISTS "${SIMCAE_OPENSSL_ROOT}/include/openssl")
+        message(FATAL_ERROR
+            "OpenSSL not found: ${SIMCAE_OPENSSL_ROOT}\n"
+            "Copy OpenSSL-Win64 to thirdparty/OpenSSL-Win64, or configure with "
+            "-DSIMCAE_OPENSSL_ROOT=<OpenSSL-Win64 root>."
+        )
+    endif()
+    set(OPENSSL_INC "${SIMCAE_OPENSSL_ROOT}/include")
+    set(OPENSSL_LIB_DEBUG "${SIMCAE_OPENSSL_ROOT}/lib/VC/x64/MDd")
+    set(OPENSSL_LIB_RELEASE "${SIMCAE_OPENSSL_ROOT}/lib/VC/x64/MD")
+    foreach(OPENSSL_LIB_DIR IN ITEMS "${OPENSSL_LIB_DEBUG}" "${OPENSSL_LIB_RELEASE}")
+        if(NOT EXISTS "${OPENSSL_LIB_DIR}")
+            message(FATAL_ERROR "OpenSSL library directory not found: ${OPENSSL_LIB_DIR}")
+        endif()
+    endforeach()
+    set(SIMCAE_OPENSSL_LINK_LIBRARIES
+        $<$<CONFIG:Debug>:${OPENSSL_LIB_DEBUG}/libssl.lib>
+        $<$<CONFIG:Debug>:${OPENSSL_LIB_DEBUG}/libcrypto.lib>
+        $<$<NOT:$<CONFIG:Debug>>:${OPENSSL_LIB_RELEASE}/libssl.lib>
+        $<$<NOT:$<CONFIG:Debug>>:${OPENSSL_LIB_RELEASE}/libcrypto.lib>
+    )
+else()
+    find_package(OpenSSL REQUIRED)
+    set(OPENSSL_INC "${OPENSSL_INCLUDE_DIR}")
+    set(SIMCAE_OPENSSL_LINK_LIBRARIES OpenSSL::SSL OpenSSL::Crypto)
+endif()
+
 add_compile_definitions(HAVE_OPENSSL=1)
-# ==========================================================
-# 统一输出目录
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/lib)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/bin)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/bin)
-# Bootstrap 不依赖 Qt，可在 Updater 退出后替换 Updater 与 Qt 运行库
+
+# 统一输出目录。Visual Studio Release 实际输出到 out/bin/Release；Linux 单独输出到 out/linux/bin。
+if(UNIX AND NOT APPLE)
+    set(SIMCAE_OUTPUT_ROOT ${CMAKE_SOURCE_DIR}/out/linux)
+else()
+    set(SIMCAE_OUTPUT_ROOT ${CMAKE_SOURCE_DIR}/out)
+endif()
+set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${SIMCAE_OUTPUT_ROOT}/lib)
+set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${SIMCAE_OUTPUT_ROOT}/bin)
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${SIMCAE_OUTPUT_ROOT}/bin)
+
+# Bootstrap 使用 Qt 实现跨平台更新交接，避免直接依赖 Win32 API。
 add_subdirectory(Bootstrap)
+
 # 先编译公共库
 add_subdirectory(Common)
+
 # 再编译三个业务程序
 add_subdirectory(Launcher)
 add_subdirectory(Updater)
 add_subdirectory(MainApp)
+
 # 默认启动项目
 set_property(DIRECTORY ${CMAKE_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Launcher)
-# Copy client.ini and config directory to output bin folder
-set(APP_CONFIG_SOURCE_FILE "${CMAKE_SOURCE_DIR}/config/app_config.example.json")
+
+# Copy config templates and static resources to output bin folder.
+if(UNIX AND NOT APPLE AND EXISTS "${CMAKE_SOURCE_DIR}/config/app_config.linux.example.json")
+    set(APP_CONFIG_SOURCE_FILE "${CMAKE_SOURCE_DIR}/config/app_config.linux.example.json")
+else()
+    set(APP_CONFIG_SOURCE_FILE "${CMAKE_SOURCE_DIR}/config/app_config.example.json")
+endif()
 set(CONFIG_SOURCE_DIR "${CMAKE_SOURCE_DIR}/config")
 set(MANIFEST_PUBLIC_KEY_FILE "${CONFIG_SOURCE_DIR}/manifest_public_key.pem")
 set(INI_TARGET_FOLDER "${CMAKE_RUNTIME_OUTPUT_DIRECTORY}")
+
 # app_config.json 包含运行时版本状态；如果存在旧 client.ini，则交给客户端首次启动迁移
 file(MAKE_DIRECTORY "${INI_TARGET_FOLDER}")
 file(MAKE_DIRECTORY "${INI_TARGET_FOLDER}/config")
@@ -46,10 +130,11 @@ if(NOT EXISTS "${INI_TARGET_FOLDER}/config/app_config.json" AND NOT EXISTS "${IN
     configure_file("${APP_CONFIG_SOURCE_FILE}" "${INI_TARGET_FOLDER}/config/app_config.json" COPYONLY)
 endif()
 foreach(RUNTIME_RESOURCE local_state.json version_policy.dat)
-    if(NOT EXISTS "${INI_TARGET_FOLDER}/config/${RUNTIME_RESOURCE}")
+    if(EXISTS "${CONFIG_SOURCE_DIR}/${RUNTIME_RESOURCE}" AND NOT EXISTS "${INI_TARGET_FOLDER}/config/${RUNTIME_RESOURCE}")
         configure_file("${CONFIG_SOURCE_DIR}/${RUNTIME_RESOURCE}" "${INI_TARGET_FOLDER}/config/${RUNTIME_RESOURCE}" COPYONLY)
     endif()
 endforeach()
+
 # 编译阶段同步静态配置资源
 add_custom_target(copy_client_resources ALL
     COMMAND ${CMAKE_COMMAND} -E make_directory ${INI_TARGET_FOLDER}
@@ -61,10 +146,16 @@ add_custom_target(copy_client_resources ALL
 add_dependencies(Launcher copy_client_resources)
 add_dependencies(Updater copy_client_resources)
 add_dependencies(MainApp copy_client_resources)
+add_dependencies(Launcher update_client_translations)
+add_dependencies(Updater update_client_translations)
+add_dependencies(MainApp update_client_translations)
+add_dependencies(Bootstrap update_client_translations)
+
 # Install rules for packaging
-if(EXISTS ${CONFIG_SOURCE_DIR})
-    install(DIRECTORY ${CONFIG_SOURCE_DIR} DESTINATION bin/config)
+if(EXISTS "${APP_CONFIG_SOURCE_FILE}")
+    install(FILES "${APP_CONFIG_SOURCE_FILE}" DESTINATION bin/config RENAME app_config.json)
+endif()
+if(EXISTS "${MANIFEST_PUBLIC_KEY_FILE}")
+    install(FILES "${MANIFEST_PUBLIC_KEY_FILE}" DESTINATION bin/config)
+    install(FILES "${MANIFEST_PUBLIC_KEY_FILE}" DESTINATION bin)
 endif()
-if(EXISTS ${MANIFEST_PUBLIC_KEY_FILE})
-    install(FILES ${MANIFEST_PUBLIC_KEY_FILE} DESTINATION bin)
-endif()

CMakePresets.json

@@ -0,0 +1,99 @@
+{
+  "version": 3,
+  "configurePresets": [
+    {
+      "name": "windows-x64-base",
+      "displayName": "Windows x64 Base",
+      "description": "Windows x64 build with Visual Studio 2022.",
+      "hidden": true,
+      "generator": "Visual Studio 17 2022",
+      "architecture": {
+        "value": "x64",
+        "strategy": "set"
+      },
+      "binaryDir": "${sourceDir}/out/build/${presetName}",
+      "installDir": "${sourceDir}/out/install/${presetName}",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Windows"
+      }
+    },
+    {
+      "name": "linux-x64-base",
+      "displayName": "Linux x64 Base",
+      "description": "Linux x64 build with system Qt and OpenSSL.",
+      "hidden": true,
+      "generator": "Unix Makefiles",
+      "binaryDir": "${sourceDir}/out/build/${presetName}",
+      "installDir": "${sourceDir}/out/install/${presetName}",
+      "condition": {
+        "type": "equals",
+        "lhs": "${hostSystemName}",
+        "rhs": "Linux"
+      }
+    },
+    {
+      "name": "x64-debug",
+      "displayName": "x64 Debug",
+      "description": "Debug build for Windows x64.",
+      "inherits": "windows-x64-base",
+      "cacheVariables": {
+        "CMAKE_CONFIGURATION_TYPES": "Debug",
+        "CMAKE_INSTALL_CONFIG_NAME": "Debug"
+      }
+    },
+    {
+      "name": "x64-release",
+      "displayName": "x64 Release",
+      "description": "Release build for Windows x64.",
+      "inherits": "windows-x64-base",
+      "cacheVariables": {
+        "CMAKE_CONFIGURATION_TYPES": "Release",
+        "CMAKE_INSTALL_CONFIG_NAME": "Release"
+      }
+    },
+    {
+      "name": "linux-x64-debug",
+      "displayName": "Linux x64 Debug",
+      "description": "Debug build for Linux x64.",
+      "inherits": "linux-x64-base",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Debug"
+      }
+    },
+    {
+      "name": "linux-x64-release",
+      "displayName": "Linux x64 Release",
+      "description": "Release build for Linux x64.",
+      "inherits": "linux-x64-base",
+      "cacheVariables": {
+        "CMAKE_BUILD_TYPE": "Release"
+      }
+    }
+  ],
+  "buildPresets": [
+    {
+      "name": "x64-debug",
+      "displayName": "x64 Debug",
+      "configurePreset": "x64-debug",
+      "configuration": "Debug"
+    },
+    {
+      "name": "x64-release",
+      "displayName": "x64 Release",
+      "configurePreset": "x64-release",
+      "configuration": "Release"
+    },
+    {
+      "name": "linux-x64-debug",
+      "displayName": "Linux x64 Debug",
+      "configurePreset": "linux-x64-debug"
+    },
+    {
+      "name": "linux-x64-release",
+      "displayName": "Linux x64 Release",
+      "configurePreset": "linux-x64-release"
+    }
+  ]
+}

Common/CMakeLists.txt

@@ -1,38 +1,36 @@
 project(Common LANGUAGES C CXX)
-find_package(Qt5 REQUIRED COMPONENTS Core Network Widgets)
 
 set(SRC
-    HttpHelper.h
-    HttpHelper.cpp
-    FileHelper.h
-    FileHelper.cpp
-    ConfigHelper.h
-    ConfigHelper.cpp
-    PolicyHelper.h
-    PolicyHelper.cpp
-    LocalStateHelper.h
-    LocalStateHelper.cpp
-    TicketHelper.h
-    TicketHelper.cpp
-    IntegrityHelper.h
-    IntegrityHelper.cpp
-    DeviceIdentityHelper.h
-    DeviceIdentityHelper.cpp
-)
-add_library(Common STATIC ${SRC})
-
-# Common编译自身需要OpenSSL头文件
-target_include_directories(Common
-    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}
-    PRIVATE ${OPENSSL_INC}
-)
-
-# 链接库、库目录通过INTERFACE传递给所有依赖Common的exe
-target_link_directories(Common INTERFACE
-    $<$<CONFIG:Debug>:${OPENSSL_LIB_DEBUG}>
-    $<$<CONFIG:Release>:${OPENSSL_LIB_RELEASE}>
-)
+    HttpHelper.h
+    HttpHelper.cpp
+    FileHelper.h
+    FileHelper.cpp
+    ConfigHelper.h
+    ConfigHelper.cpp
+    PolicyHelper.h
+    PolicyHelper.cpp
+    LocalStateHelper.h
+    LocalStateHelper.cpp
+    TicketHelper.h
+    TicketHelper.cpp
+    IntegrityHelper.h
+    IntegrityHelper.cpp
+    DeviceIdentityHelper.h
+    DeviceIdentityHelper.cpp
+)
+add_library(Common STATIC ${SRC})
+
+# Common编译自身需要OpenSSL头文件
+target_include_directories(Common
+    PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}
+    PRIVATE ${OPENSSL_INC}
+)
+
 target_link_libraries(Common
     PRIVATE Qt5::Core Qt5::Network Qt5::Widgets
-    INTERFACE libssl.lib libcrypto.lib
-)
+    PUBLIC ${SIMCAE_OPENSSL_LINK_LIBRARIES}
+)
+
+if(WIN32)
+    target_link_libraries(Common INTERFACE shell32)
+endif()

Common/ConfigHelper.cpp

@@ -1,13 +1,327 @@
 #include "ConfigHelper.h"
 #include <QApplication>
+#include <QByteArray>
+#include <QCoreApplication>
+#include <QCryptographicHash>
+#include <QDateTime>
 #include <QDir>
 #include <QFile>
 #include <QFileInfo>
 #include <QJsonDocument>
 #include <QJsonObject>
+#include <QJsonValue>
+#include <QMessageBox>
 #include <QSaveFile>
 #include <QSettings>
+#include <QStandardPaths>
+#include <QStringList>
 #include <QDebug>
+#include <string>
+#ifdef Q_OS_WIN
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <windows.h>
+#include <shellapi.h>
+#endif
+
+namespace
+{
+const QString kElevatedConfigSetFlag = QStringLiteral("--simcae-config-set");
+const QString kElevatedFileWriteFlag = QStringLiteral("--simcae-file-write");
+const QString kElevatedFileRemoveFlag = QStringLiteral("--simcae-file-remove");
+const QString kConfigPathPrefix = QStringLiteral("--config-path-b64=");
+const QString kConfigKeyPrefix = QStringLiteral("--config-key-b64=");
+const QString kConfigValuePrefix = QStringLiteral("--config-value-b64=");
+const QString kFilePathPrefix = QStringLiteral("--file-path-b64=");
+const QString kFileDataPrefix = QStringLiteral("--file-data-b64=");
+const QString kRegistryOrganization = QStringLiteral("Marsco");
+const QString kRegistryApplication = QStringLiteral("UpdateClientSDK");
+const QString kRegistryInstallationsGroup = QStringLiteral("installations");
+const QString kRegistryConfigGroup = QStringLiteral("config");
+const QString kRegistryMetaGroup = QStringLiteral("_meta");
+const QString kRegistrySourceHashKey = QStringLiteral("source_sha256");
+const QString kRegistrySourcePathKey = QStringLiteral("source_path");
+const QString kRegistryRuntimeRootKey = QStringLiteral("runtime_root");
+const QString kRegistryImportedAtKey = QStringLiteral("imported_at_utc");
+const QString kEmbeddedServerConfigPath = QStringLiteral(":/simcae/server_config.json");
+const QString kApiBaseUrlKey = QStringLiteral("api_base_url");
+
+// 需要提权写入时，子进程参数统一用 Base64Url 编码。
+// 这样可以避免 Windows 路径、中文、空格或换行在 ShellExecute 参数传递中被截断或误解析。
+QString encodeArgument(const QString& value)
+{
+    return QString::fromLatin1(value.toUtf8().toBase64(
+        QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals));
+}
+
+QString encodeBytes(const QByteArray& value)
+{
+    return QString::fromLatin1(value.toBase64(
+        QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals));
+}
+
+QString decodeArgument(const QString& value)
+{
+    return QString::fromUtf8(QByteArray::fromBase64(value.toLatin1(),
+        QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals));
+}
+
+QByteArray decodeBytes(const QString& value)
+{
+    return QByteArray::fromBase64(value.toLatin1(),
+        QByteArray::Base64UrlEncoding | QByteArray::OmitTrailingEquals);
+}
+
+QString findArgumentValue(const QStringList& arguments, const QString& prefix)
+{
+    for (const QString& argument : arguments)
+        if (argument.startsWith(prefix))
+            return argument.mid(prefix.size());
+    return QString();
+}
+
+bool writeBytesToFile(const QString& path, const QByteArray& bytes, QString* errorMessage)
+{
+    QDir dir(QFileInfo(path).path());
+    if (!dir.exists() && !dir.mkpath("."))
+    {
+        if (errorMessage)
+            *errorMessage = QString("Cannot create directory: %1").arg(dir.path());
+        return false;
+    }
+
+    QSaveFile output(path);
+    if (!output.open(QIODevice::WriteOnly))
+    {
+        if (errorMessage)
+            *errorMessage = QString("Cannot open file for writing: %1").arg(output.errorString());
+        return false;
+    }
+    if (output.write(bytes) != bytes.size())
+    {
+        if (errorMessage)
+            *errorMessage = QString("Cannot write full file: %1").arg(output.errorString());
+        output.cancelWriting();
+        return false;
+    }
+    if (!output.commit())
+    {
+        if (errorMessage)
+            *errorMessage = QString("Cannot commit file: %1").arg(output.errorString());
+        return false;
+    }
+    if (errorMessage)
+        errorMessage->clear();
+    return true;
+}
+
+bool removeFile(const QString& path, QString* errorMessage)
+{
+    if (!QFile::exists(path))
+    {
+        if (errorMessage)
+            errorMessage->clear();
+        return true;
+    }
+    if (QFile::remove(path))
+    {
+        if (errorMessage)
+            errorMessage->clear();
+        return true;
+    }
+    if (errorMessage)
+        *errorMessage = QString("Cannot remove file: %1").arg(path);
+    return false;
+}
+
+bool writeConfigValueToFile(const QString& configPath, const QString& key,
+                            const QString& value, QString* errorMessage)
+{
+    QFile input(configPath);
+    QJsonObject config;
+    if (input.exists())
+    {
+        if (!input.open(QIODevice::ReadOnly))
+        {
+            if (errorMessage)
+                *errorMessage = QString("Cannot open config for reading: %1").arg(input.errorString());
+            return false;
+        }
+        QJsonParseError parseError;
+        const QByteArray raw = input.readAll();
+        input.close();
+        const QJsonDocument document = QJsonDocument::fromJson(raw, &parseError);
+        if (parseError.error != QJsonParseError::NoError || !document.isObject())
+        {
+            if (errorMessage)
+                *errorMessage = QString("Invalid config JSON: %1").arg(parseError.errorString());
+            return false;
+        }
+        config = document.object();
+    }
+
+    config.insert(key, value);
+    QDir dir(QFileInfo(configPath).path());
+    if (!dir.exists() && !dir.mkpath("."))
+    {
+        if (errorMessage)
+            *errorMessage = QString("Cannot create config directory: %1").arg(dir.path());
+        return false;
+    }
+
+    const QByteArray payload = QJsonDocument(config).toJson(QJsonDocument::Indented);
+    return writeBytesToFile(configPath, payload, errorMessage);
+}
+
+bool isRegistryManagedConfigKey(const QString& key)
+{
+    // 服务端地址是编译期 qrc 配置，不进入注册表。
+    // 其他运行配置会在 Launcher 首次启动时导入注册表，之后以注册表为准。
+    return key != kApiBaseUrlKey;
+}
+
+bool isPathInsideDirectory(const QString& path, const QString& directory)
+{
+    if (path.isEmpty() || directory.isEmpty())
+        return false;
+
+    QString normalizedPath = QDir::cleanPath(QFileInfo(path).absoluteFilePath());
+    QString normalizedDirectory = QDir::cleanPath(QFileInfo(directory).absoluteFilePath());
+#ifdef Q_OS_WIN
+    normalizedPath = normalizedPath.toLower();
+    normalizedDirectory = normalizedDirectory.toLower();
+#endif
+    return normalizedPath == normalizedDirectory
+        || normalizedPath.startsWith(normalizedDirectory + QDir::separator());
+}
+
+bool isUserDataPath(const QString& path)
+{
+    return isPathInsideDirectory(path, ConfigHelper::instance().dataRoot());
+}
+
+QJsonObject registryManagedConfigObject(const QJsonObject& source)
+{
+    QJsonObject result;
+    for (auto it = source.constBegin(); it != source.constEnd(); ++it)
+    {
+        if (isRegistryManagedConfigKey(it.key()))
+            result.insert(it.key(), it.value());
+    }
+    return result;
+}
+
+#ifdef Q_OS_WIN
+QString windowsErrorMessage(DWORD errorCode)
+{
+    if (errorCode == ERROR_CANCELLED)
+        return QCoreApplication::translate("ConfigHelper", "The user canceled the administrator permission confirmation.");
+    return QCoreApplication::translate("ConfigHelper", "Windows error %1").arg(errorCode);
+}
+
+bool runElevatedSelfCommand(const QStringList& arguments, const QString& targetPath,
+                            const QString& originalError, QString* errorMessage)
+{
+    // 安装到 C:\Program Files 等目录时，普通用户不能直接修改配置或运行态文件。
+    // 这里不让主进程一直以管理员运行，而是在确实需要写入时临时拉起自身完成单次写入。
+    const QMessageBox::StandardButton choice = QMessageBox::question(
+        nullptr,
+        QCoreApplication::translate("ConfigHelper", "Administrator Permission Required"),
+        QCoreApplication::translate("ConfigHelper", "The current operation needs administrator permission to modify a protected file.\n\nTarget file: %1\nReason: %2\n\nClick OK, then choose Yes in the Windows permission confirmation dialog.")
+            .arg(QDir::toNativeSeparators(targetPath), originalError),
+        QMessageBox::Ok | QMessageBox::Cancel,
+        QMessageBox::Ok);
+    if (choice != QMessageBox::Ok)
+    {
+        if (errorMessage)
+            *errorMessage = QCoreApplication::translate("ConfigHelper", "The user canceled the administrator permission request.");
+        return false;
+    }
+
+    const QString executable = QCoreApplication::applicationFilePath();
+    if (executable.isEmpty() || !QFileInfo::exists(executable))
+    {
+        if (errorMessage)
+            *errorMessage = QStringLiteral("Cannot locate current executable for elevated config write.");
+        return false;
+    }
+
+    const QString parameters = arguments.join(QLatin1Char(' '));
+    const QString workingDir = QFileInfo(executable).absolutePath();
+
+    std::wstring verb = L"runas";
+    std::wstring file = executable.toStdWString();
+    std::wstring params = parameters.toStdWString();
+    std::wstring directory = workingDir.toStdWString();
+
+    SHELLEXECUTEINFOW info{};
+    info.cbSize = sizeof(info);
+    info.fMask = SEE_MASK_NOCLOSEPROCESS;
+    info.lpVerb = verb.c_str();
+    info.lpFile = file.c_str();
+    info.lpParameters = params.c_str();
+    info.lpDirectory = directory.c_str();
+    info.nShow = SW_HIDE;
+
+    if (!ShellExecuteExW(&info))
+    {
+        const DWORD err = GetLastError();
+        if (errorMessage)
+            *errorMessage = QStringLiteral("Cannot request administrator permission: %1").arg(windowsErrorMessage(err));
+        return false;
+    }
+
+    WaitForSingleObject(info.hProcess, INFINITE);
+    DWORD exitCode = 1;
+    GetExitCodeProcess(info.hProcess, &exitCode);
+    CloseHandle(info.hProcess);
+    if (exitCode != 0)
+    {
+        if (errorMessage)
+            *errorMessage = QStringLiteral("Elevated config write failed with exit code %1.").arg(exitCode);
+        return false;
+    }
+
+    if (errorMessage)
+        errorMessage->clear();
+    return true;
+}
+
+bool writeConfigValueWithElevation(const QString& configPath, const QString& key,
+                                   const QString& value, const QString& originalError,
+                                   QString* errorMessage)
+{
+    const QStringList arguments{
+        kElevatedConfigSetFlag,
+        kConfigPathPrefix + encodeArgument(configPath),
+        kConfigKeyPrefix + encodeArgument(key),
+        kConfigValuePrefix + encodeArgument(value)
+    };
+    return runElevatedSelfCommand(arguments, configPath, originalError, errorMessage);
+}
+
+bool writeBytesWithElevation(const QString& path, const QByteArray& bytes,
+                             const QString& originalError, QString* errorMessage)
+{
+    const QStringList arguments{
+        kElevatedFileWriteFlag,
+        kFilePathPrefix + encodeArgument(path),
+        kFileDataPrefix + encodeBytes(bytes)
+    };
+    return runElevatedSelfCommand(arguments, path, originalError, errorMessage);
+}
+
+bool removeFileWithElevation(const QString& path, const QString& originalError, QString* errorMessage)
+{
+    const QStringList arguments{
+        kElevatedFileRemoveFlag,
+        kFilePathPrefix + encodeArgument(path)
+    };
+    return runElevatedSelfCommand(arguments, path, originalError, errorMessage);
+}
+#endif
+}
 
 ConfigHelper& ConfigHelper::instance()
 {
@@ -15,56 +329,450 @@ ConfigHelper& ConfigHelper::instance()
     return obj;
 }
 
+QString ConfigHelper::executableNameForCurrentPlatform(const QString& configuredValue,
+                                                       const QString& fallbackBaseName)
+{
+    QString name = configuredValue.trimmed();
+    if (name.isEmpty())
+        name = fallbackBaseName.trimmed();
+
+#ifdef Q_OS_WIN
+    const QString fileName = QFileInfo(name).fileName();
+    if (!fileName.endsWith(QStringLiteral(".exe"), Qt::CaseInsensitive)
+        && QFileInfo(fileName).suffix().isEmpty()) {
+        name += QStringLiteral(".exe");
+    }
+#else
+    if (name.endsWith(QStringLiteral(".exe"), Qt::CaseInsensitive))
+        name.chop(4);
+#endif
+    return name;
+}
+
+int ConfigHelper::runElevatedWriteCommandIfRequested()
+{
+    const QStringList arguments = QCoreApplication::arguments();
+    if (arguments.contains(kElevatedConfigSetFlag))
+    {
+        const QString configPath = decodeArgument(findArgumentValue(arguments, kConfigPathPrefix));
+        const QString key = decodeArgument(findArgumentValue(arguments, kConfigKeyPrefix));
+        const QString value = decodeArgument(findArgumentValue(arguments, kConfigValuePrefix));
+        if (configPath.isEmpty() || key.isEmpty())
+        {
+            qWarning() << "Elevated config write arguments are incomplete.";
+            return 2;
+        }
+
+        QString errorMessage;
+        if (!writeConfigValueToFile(configPath, key, value, &errorMessage))
+        {
+            qWarning() << "Elevated config write failed:" << errorMessage;
+            return 3;
+        }
+        return 0;
+    }
+
+    if (arguments.contains(kElevatedFileWriteFlag))
+    {
+        const QString path = decodeArgument(findArgumentValue(arguments, kFilePathPrefix));
+        const QByteArray bytes = decodeBytes(findArgumentValue(arguments, kFileDataPrefix));
+        if (path.isEmpty())
+        {
+            qWarning() << "Elevated file write arguments are incomplete.";
+            return 2;
+        }
+
+        QString errorMessage;
+        if (!writeBytesToFile(path, bytes, &errorMessage))
+        {
+            qWarning() << "Elevated file write failed:" << errorMessage;
+            return 3;
+        }
+        return 0;
+    }
+
+    if (arguments.contains(kElevatedFileRemoveFlag))
+    {
+        const QString path = decodeArgument(findArgumentValue(arguments, kFilePathPrefix));
+        if (path.isEmpty())
+        {
+            qWarning() << "Elevated file remove arguments are incomplete.";
+            return 2;
+        }
+
+        QString errorMessage;
+        if (!removeFile(path, &errorMessage))
+        {
+            qWarning() << "Elevated file remove failed:" << errorMessage;
+            return 3;
+        }
+        return 0;
+    }
+
+    return -1;
+}
+
+bool ConfigHelper::writeFileWithElevationIfNeeded(const QString& path, const QByteArray& data,
+                                                  QString* errorMessage)
+{
+    QString localError;
+    if (writeBytesToFile(path, data, &localError))
+    {
+        if (errorMessage)
+            errorMessage->clear();
+        return true;
+    }
+
+#ifdef Q_OS_WIN
+    if (isUserDataPath(path))
+    {
+        if (errorMessage)
+            *errorMessage = localError;
+        return false;
+    }
+    if (data.size() > 24 * 1024)
+    {
+        if (errorMessage)
+            *errorMessage = QString("File is too large for elevated inline write: %1 bytes. Original error: %2")
+                .arg(data.size()).arg(localError);
+        return false;
+    }
+    return writeBytesWithElevation(path, data, localError, errorMessage);
+#else
+    if (errorMessage)
+        *errorMessage = localError;
+    return false;
+#endif
+}
+
+bool ConfigHelper::removeFileWithElevationIfNeeded(const QString& path, QString* errorMessage)
+{
+    QString localError;
+    if (removeFile(path, &localError))
+    {
+        if (errorMessage)
+            errorMessage->clear();
+        return true;
+    }
+
+#ifdef Q_OS_WIN
+    if (isUserDataPath(path))
+    {
+        if (errorMessage)
+            *errorMessage = localError;
+        return false;
+    }
+    return removeFileWithElevation(path, localError, errorMessage);
+#else
+    if (errorMessage)
+        *errorMessage = localError;
+    return false;
+#endif
+}
+
 ConfigHelper::ConfigHelper()
 {
     m_configPath = QApplication::applicationDirPath() + "/config/app_config.json";
+    m_registryInstallId = QString::fromLatin1(QCryptographicHash::hash(
+        QDir::cleanPath(QApplication::applicationDirPath()).toUtf8(),
+        QCryptographicHash::Sha256).toHex());
     migrateLegacyIniIfNeeded();
+    syncRegistryFromConfigFileIfChanged();
+    removeRegistryValue(kApiBaseUrlKey);
     qDebug() << "Loading app config path:" << m_configPath;
     qDebug() << "File exists?" << QFile::exists(m_configPath);
+    qDebug() << "Registry installation id:" << m_registryInstallId;
 }
-
-QString ConfigHelper::configPath() const
-{
-    return m_configPath;
-}
-
-QString ConfigHelper::installRoot() const
-{
-    QString relativeRoot = getValue("Runtime", "install_root").trimmed();
-    if (relativeRoot.isEmpty())
-        relativeRoot = ".";
-    return QDir::cleanPath(QDir(runtimeRoot()).filePath(relativeRoot));
-}
-
+
+QString ConfigHelper::configPath() const
+{
+    return m_configPath;
+}
+
+QString ConfigHelper::installRoot() const
+{
+    QString relativeRoot = getValue("Runtime", "install_root").trimmed();
+    if (relativeRoot.isEmpty())
+        relativeRoot = ".";
+    return QDir::cleanPath(QDir(runtimeRoot()).filePath(relativeRoot));
+}
+
 QString ConfigHelper::runtimeRoot() const
 {
     return QDir::cleanPath(QApplication::applicationDirPath());
 }
 
+QString ConfigHelper::dataRoot() const
+{
+    QString base = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation);
+    if (base.isEmpty())
+        base = QDir::homePath();
+    return QDir::cleanPath(QDir(base).filePath(
+        QStringLiteral("Marsco/UpdateClientSDK/installations/%1").arg(m_registryInstallId)));
+}
+
+QString ConfigHelper::dataConfigDir() const
+{
+    return QDir(dataRoot()).filePath(QStringLiteral("config"));
+}
+
+QString ConfigHelper::clientIdentityPath() const
+{
+    return QDir(dataConfigDir()).filePath(QStringLiteral("client_identity.dat"));
+}
+
+QString ConfigHelper::policyPath() const
+{
+    return QDir(dataConfigDir()).filePath(QStringLiteral("version_policy.dat"));
+}
+
+QString ConfigHelper::localStatePath() const
+{
+    return QDir(dataConfigDir()).filePath(QStringLiteral("local_state.json"));
+}
+
 QString ConfigHelper::updateRoot() const
 {
-    return QDir(runtimeRoot()).filePath("update");
+    return QDir(dataRoot()).filePath("update");
 }
-
-QString ConfigHelper::runtimeRelativePath() const
-{
-    QString relative = QDir::fromNativeSeparators(QDir(installRoot()).relativeFilePath(runtimeRoot()));
-    relative = QDir::cleanPath(relative);
-    if (relative == ".")
-        return QString();
-    while (relative.startsWith("./"))
-        relative = relative.mid(2);
-    return relative.trimmed();
-}
-
+
+QString ConfigHelper::runtimeRelativePath() const
+{
+    QString relative = QDir::fromNativeSeparators(QDir(installRoot()).relativeFilePath(runtimeRoot()));
+    relative = QDir::cleanPath(relative);
+    if (relative == ".")
+        return QString();
+    while (relative.startsWith("./"))
+        relative = relative.mid(2);
+    return relative.trimmed();
+}
+
 QString ConfigHelper::lastError() const
 {
     return m_error;
 }
 
-QString ConfigHelper::getValue(const QString& section, const QString& key) const
+void ConfigHelper::enterRegistryGroup(QSettings& settings) const
 {
-    Q_UNUSED(section);
+    settings.beginGroup(kRegistryInstallationsGroup);
+    settings.beginGroup(m_registryInstallId);
+}
+
+bool ConfigHelper::syncRegistryFromConfigFileIfChanged()
+{
+    QFile file(m_configPath);
+    if (!file.exists())
+        return true;
+
+    if (!file.open(QIODevice::ReadOnly))
+    {
+        m_error = QStringLiteral("Cannot open config for reading: %1").arg(file.errorString());
+        return false;
+    }
+
+    QJsonParseError parseError;
+    const QByteArray raw = file.readAll();
+    const QJsonDocument document = QJsonDocument::fromJson(raw, &parseError);
+    if (parseError.error != QJsonParseError::NoError || !document.isObject())
+    {
+        m_error = QStringLiteral("Invalid config JSON: %1").arg(parseError.errorString());
+        return false;
+    }
+
+    const QJsonObject config = registryManagedConfigObject(document.object());
+    const QByteArray normalizedConfig = QJsonDocument(config).toJson(QJsonDocument::Compact);
+    const QString sourceHash = QString::fromLatin1(
+        QCryptographicHash::hash(normalizedConfig, QCryptographicHash::Sha256).toHex());
+
+    QSettings settings(QSettings::NativeFormat, QSettings::UserScope,
+                       kRegistryOrganization, kRegistryApplication);
+    enterRegistryGroup(settings);
+    settings.beginGroup(kRegistryMetaGroup);
+    const QString previousHash = settings.value(kRegistrySourceHashKey).toString();
+    settings.endGroup();
+
+    if (previousHash == sourceHash)
+        return true;
+
+    if (config.isEmpty())
+    {
+        settings.beginGroup(kRegistryMetaGroup);
+        settings.setValue(kRegistrySourceHashKey, sourceHash);
+        settings.setValue(kRegistrySourcePathKey, QDir::toNativeSeparators(QFileInfo(m_configPath).absoluteFilePath()));
+        settings.setValue(kRegistryRuntimeRootKey, QDir::toNativeSeparators(QApplication::applicationDirPath()));
+        settings.setValue(kRegistryImportedAtKey, QDateTime::currentDateTimeUtc().toString(Qt::ISODate));
+        settings.endGroup();
+        settings.sync();
+        if (settings.status() != QSettings::NoError)
+        {
+            m_error = QStringLiteral("Cannot sync empty app_config.json marker to registry.");
+            return false;
+        }
+        m_error.clear();
+        qDebug() << "app_config.json is empty; keeping existing registry configuration.";
+        return true;
+    }
+
+    const bool configChangedAfterPreviousImport = !previousHash.isEmpty();
+
+    settings.beginGroup(kRegistryConfigGroup);
+    settings.remove(QString());
+    for (auto it = config.constBegin(); it != config.constEnd(); ++it)
+        settings.setValue(it.key(), it.value().toVariant());
+    settings.endGroup();
+
+    settings.beginGroup(kRegistryMetaGroup);
+    settings.setValue(kRegistrySourceHashKey, sourceHash);
+    settings.setValue(kRegistrySourcePathKey, QDir::toNativeSeparators(QFileInfo(m_configPath).absoluteFilePath()));
+    settings.setValue(kRegistryRuntimeRootKey, QDir::toNativeSeparators(QApplication::applicationDirPath()));
+    settings.setValue(kRegistryImportedAtKey, QDateTime::currentDateTimeUtc().toString(Qt::ISODate));
+    settings.endGroup();
+    settings.sync();
+
+    if (settings.status() != QSettings::NoError)
+    {
+        m_error = QStringLiteral("Cannot sync config to registry.");
+        return false;
+    }
+
+    m_error.clear();
+    qDebug() << "Synced app_config.json to registry installation id:" << m_registryInstallId;
+
+    if (configChangedAfterPreviousImport)
+    {
+        const QStringList staleFiles{
+            clientIdentityPath(),
+            policyPath(),
+            localStatePath()
+        };
+        for (const QString& staleFile : staleFiles)
+        {
+            QString removeError;
+            if (!removeFile(staleFile, &removeError))
+            {
+                m_error = QStringLiteral("Cannot remove stale runtime file after config change: %1. %2")
+                    .arg(staleFile, removeError);
+                return false;
+            }
+        }
+        qDebug() << "Removed stale client identity, policy and local state after app_config.json changed.";
+    }
+
+    if (!config.isEmpty() && !sanitizeConfigFileAfterImport(settings))
+    {
+        qWarning() << "Cannot sanitize app_config.json after registry import:" << m_error;
+        return true;
+    }
+    return true;
+}
+
+bool ConfigHelper::sanitizeConfigFileAfterImport(QSettings& settings)
+{
+    const QJsonObject emptyConfig;
+    const QByteArray normalizedEmptyConfig = QJsonDocument(emptyConfig).toJson(QJsonDocument::Compact);
+    const QByteArray emptyFileBytes = QJsonDocument(emptyConfig).toJson(QJsonDocument::Indented);
+    const QString sanitizedHash = QString::fromLatin1(
+        QCryptographicHash::hash(normalizedEmptyConfig, QCryptographicHash::Sha256).toHex());
+
+    QString writeError;
+    if (!writeBytesToFile(m_configPath, emptyFileBytes, &writeError))
+    {
+        // 清空 app_config.json 只是为了减少明文配置暴露，不是启动必需步骤。
+        // 如果安装目录或文件只读，不再为了清空源配置弹 UAC；运行配置已经写入 HKCU 注册表。
+        m_error = QStringLiteral("Cannot clear app_config.json after registry import without elevation: %1").arg(writeError);
+        return false;
+    }
+
+    settings.beginGroup(kRegistryMetaGroup);
+    settings.setValue(kRegistrySourceHashKey, sanitizedHash);
+    settings.setValue(kRegistrySourcePathKey, QDir::toNativeSeparators(QFileInfo(m_configPath).absoluteFilePath()));
+    settings.setValue(kRegistryRuntimeRootKey, QDir::toNativeSeparators(QApplication::applicationDirPath()));
+    settings.setValue(kRegistryImportedAtKey, QDateTime::currentDateTimeUtc().toString(Qt::ISODate));
+    settings.endGroup();
+    settings.sync();
+
+    if (settings.status() != QSettings::NoError)
+    {
+        m_error = QStringLiteral("Cannot update registry source hash after clearing app_config.json.");
+        return false;
+    }
+
+    m_error.clear();
+    qDebug() << "Cleared app_config.json after importing configuration to registry.";
+    return true;
+}
+
+bool ConfigHelper::removeRegistryValue(const QString& key) const
+{
+    QSettings settings(QSettings::NativeFormat, QSettings::UserScope,
+                       kRegistryOrganization, kRegistryApplication);
+    enterRegistryGroup(settings);
+    settings.beginGroup(kRegistryConfigGroup);
+    settings.remove(key);
+    settings.endGroup();
+    settings.sync();
+    return settings.status() == QSettings::NoError;
+}
+
+QString ConfigHelper::readEmbeddedValue(const QString& key) const
+{
+    if (key != kApiBaseUrlKey)
+        return QString();
+
+    QFile file(kEmbeddedServerConfigPath);
+    if (!file.open(QIODevice::ReadOnly))
+        return QString();
+
+    QJsonParseError error;
+    const QJsonDocument document = QJsonDocument::fromJson(file.readAll(), &error);
+    if (error.error != QJsonParseError::NoError || !document.isObject())
+        return QString();
+
+    return document.object().value(key).toVariant().toString().trimmed();
+}
+
+bool ConfigHelper::readRegistryValue(const QString& key, QString* value) const
+{
+    QSettings settings(QSettings::NativeFormat, QSettings::UserScope,
+                       kRegistryOrganization, kRegistryApplication);
+    enterRegistryGroup(settings);
+    settings.beginGroup(kRegistryConfigGroup);
+    if (!settings.contains(key))
+    {
+        settings.endGroup();
+        return false;
+    }
+    if (value)
+        *value = settings.value(key).toString();
+    settings.endGroup();
+    return true;
+}
+
+bool ConfigHelper::writeRegistryValue(const QString& key, const QString& value)
+{
+    QSettings settings(QSettings::NativeFormat, QSettings::UserScope,
+                       kRegistryOrganization, kRegistryApplication);
+    enterRegistryGroup(settings);
+    settings.beginGroup(kRegistryConfigGroup);
+    settings.setValue(key, value);
+    settings.endGroup();
+    settings.sync();
+
+    if (settings.status() != QSettings::NoError)
+    {
+        m_error = QStringLiteral("Cannot write config value to registry: %1").arg(key);
+        return false;
+    }
+
+    m_error.clear();
+    return true;
+}
+
+QString ConfigHelper::readFileValue(const QString& key) const
+{
+    if (!isRegistryManagedConfigKey(key))
+        return QString();
+
     QFile file(m_configPath);
     if (!file.open(QIODevice::ReadOnly))
         return QString();
@@ -77,105 +785,79 @@ QString ConfigHelper::getValue(const QString& section, const QString& key) const
     return document.object().value(key).toVariant().toString();
 }
 
+QString ConfigHelper::getValue(const QString& section, const QString& key) const
+{
+    Q_UNUSED(section);
+    const QString embeddedValue = readEmbeddedValue(key);
+    if (!embeddedValue.isEmpty())
+        return embeddedValue;
+    if (!isRegistryManagedConfigKey(key))
+        return QString();
+
+    QString value;
+    if (readRegistryValue(key, &value))
+        return value;
+    return readFileValue(key);
+}
+
 bool ConfigHelper::setValue(const QString& section, const QString& key, const QString& value)
 {
     Q_UNUSED(section);
     m_error.clear();
 
-    QFile input(m_configPath);
-    QJsonObject config;
-    if (input.exists())
-    {
-        if (!input.open(QIODevice::ReadOnly))
-        {
-            m_error = QString("Cannot open config for reading: %1").arg(input.errorString());
-            return false;
-        }
-        QJsonParseError parseError;
-        const QByteArray raw = input.readAll();
-        input.close();
-        const QJsonDocument document = QJsonDocument::fromJson(raw, &parseError);
-        if (parseError.error != QJsonParseError::NoError || !document.isObject())
-        {
-            m_error = QString("Invalid config JSON: %1").arg(parseError.errorString());
-            return false;
-        }
-        config = document.object();
-    }
-
-    config.insert(key, value);
-    QDir dir(QFileInfo(m_configPath).path());
-    if (!dir.exists() && !dir.mkpath("."))
-    {
-        m_error = QString("Cannot create config directory: %1").arg(dir.path());
-        return false;
-    }
-
-    QSaveFile output(m_configPath);
-    if (!output.open(QIODevice::WriteOnly))
-    {
-        m_error = QString("Cannot open config for writing: %1").arg(output.errorString());
-        return false;
-    }
-    const QByteArray payload = QJsonDocument(config).toJson(QJsonDocument::Indented);
-    if (output.write(payload) != payload.size())
-    {
-        m_error = QString("Cannot write full config file: %1").arg(output.errorString());
-        output.cancelWriting();
-        return false;
-    }
-    if (!output.commit())
-    {
-        m_error = QString("Cannot commit config file: %1").arg(output.errorString());
-        return false;
-    }
-    return true;
+    return writeRegistryValue(key, value);
 }
-
-bool ConfigHelper::migrateLegacyIniIfNeeded()
-{
-    if (QFile::exists(m_configPath))
-        return true;
-
-    const QString legacyPath = QApplication::applicationDirPath() + "/client.ini";
-    if (!QFile::exists(legacyPath))
-        return false;
-
-    QSettings ini(legacyPath, QSettings::IniFormat);
-    QJsonObject config;
-    const auto copyText = [&](const QString& section, const QString& key, const QString& fallback = QString()) {
-        const QString value = ini.value(section + "/" + key, fallback).toString();
-        config.insert(key, value);
-    };
-
-    copyText("App", "app_id");
-    copyText("App", "app_name", "Marsco Demo App");
-    copyText("App", "channel", "stable");
-    copyText("App", "current_version", "1.0.0");
-    copyText("App", "client_protocol", "3");
-    copyText("App", "launch_token");
-    copyText("License", "license_key");
-    copyText("Server", "api_base_url");
-    copyText("Server", "client_token");
-    copyText("Update", "request_timeout_ms", "5000");
-    copyText("Update", "temp_folder", "update_temp");
-    copyText("Update", "device_id");
-    copyText("Runtime", "install_root", ".");
-    copyText("Runtime", "main_executable", "MainApp.exe");
-    copyText("Runtime", "launcher_executable", "Launcher.exe");
-    copyText("Runtime", "updater_executable", "Updater.exe");
-    copyText("Runtime", "bootstrap_executable", "Bootstrap.exe");
+
+bool ConfigHelper::migrateLegacyIniIfNeeded()
+{
+    if (QFile::exists(m_configPath))
+        return true;
+
+    const QString legacyPath = QApplication::applicationDirPath() + "/client.ini";
+    if (!QFile::exists(legacyPath))
+        return false;
+
+    QSettings ini(legacyPath, QSettings::IniFormat);
+    QJsonObject config;
+    const auto copyText = [&](const QString& section, const QString& key, const QString& fallback = QString()) {
+        const QString value = ini.value(section + "/" + key, fallback).toString();
+        config.insert(key, value);
+    };
+
+    copyText("App", "app_id");
+    copyText("App", "app_name", "Marsco Demo App");
+    copyText("App", "channel", "stable");
+    copyText("App", "current_version", "1.0.0");
+    copyText("App", "client_protocol", "3");
+    copyText("App", "launch_token");
+    copyText("License", "license_key");
+    copyText("Server", "api_base_url");
+    copyText("Server", "client_token");
+    copyText("Update", "request_timeout_ms", "5000");
+    copyText("Update", "temp_folder", "update_temp");
+    copyText("Update", "device_id");
+    copyText("Runtime", "install_root", ".");
+    copyText("Runtime", "main_executable", ConfigHelper::executableNameForCurrentPlatform(QString(), "MainApp"));
+    copyText("Runtime", "launcher_executable", ConfigHelper::executableNameForCurrentPlatform(QString(), "Launcher"));
+    copyText("Runtime", "updater_executable", ConfigHelper::executableNameForCurrentPlatform(QString(), "Updater"));
+    copyText("Runtime", "bootstrap_executable", ConfigHelper::executableNameForCurrentPlatform(QString(), "Bootstrap"));
     copyText("Runtime", "health_check_timeout_ms", "15000");
+#ifdef Q_OS_WIN
     config.insert("platform", "windows");
+#elif defined(Q_OS_LINUX)
+    config.insert("platform", "linux");
+#else
+    config.insert("platform", "unknown");
+#endif
     config.insert("arch", "x64");
-
-    QDir().mkpath(QFileInfo(m_configPath).path());
-    QSaveFile output(m_configPath);
-    if (!output.open(QIODevice::WriteOnly))
-        return false;
-    output.write(QJsonDocument(config).toJson(QJsonDocument::Indented));
-    const bool saved = output.commit();
-    if (saved)
-        qDebug() << "Migrated legacy client.ini to" << m_configPath;
-    return saved;
-}
+
+    QDir().mkpath(QFileInfo(m_configPath).path());
+    QSaveFile output(m_configPath);
+    if (!output.open(QIODevice::WriteOnly))
+        return false;
+    output.write(QJsonDocument(config).toJson(QJsonDocument::Indented));
+    const bool saved = output.commit();
+    if (saved)
+        qDebug() << "Migrated legacy client.ini to" << m_configPath;
+    return saved;
+}

Common/ConfigHelper.h

@@ -1,15 +1,29 @@
 #pragma once
+#include <QByteArray>
 #include <QString>
 
+class QSettings;
+
 class ConfigHelper
 {
 public:
     static ConfigHelper& instance();
+    static int runElevatedWriteCommandIfRequested();
+    static QString executableNameForCurrentPlatform(const QString& configuredValue,
+                                                    const QString& fallbackBaseName);
+    static bool writeFileWithElevationIfNeeded(const QString& path, const QByteArray& data,
+                                               QString* errorMessage = nullptr);
+    static bool removeFileWithElevationIfNeeded(const QString& path, QString* errorMessage = nullptr);
     QString getValue(const QString& section, const QString& key) const;
-    bool setValue(const QString& section, const QString& key, const QString& value);
-    QString configPath() const;
+    bool setValue(const QString& section, const QString& key, const QString& value);
+    QString configPath() const;
     QString installRoot() const;
     QString runtimeRoot() const;
+    QString dataRoot() const;
+    QString dataConfigDir() const;
+    QString clientIdentityPath() const;
+    QString policyPath() const;
+    QString localStatePath() const;
     QString updateRoot() const;
     QString runtimeRelativePath() const;
     QString lastError() const;
@@ -17,6 +31,15 @@ public:
 private:
     ConfigHelper();
     bool migrateLegacyIniIfNeeded();
+    void enterRegistryGroup(QSettings& settings) const;
+    bool syncRegistryFromConfigFileIfChanged();
+    bool sanitizeConfigFileAfterImport(QSettings& settings);
+    bool removeRegistryValue(const QString& key) const;
+    QString readEmbeddedValue(const QString& key) const;
+    bool readRegistryValue(const QString& key, QString* value) const;
+    bool writeRegistryValue(const QString& key, const QString& value);
+    QString readFileValue(const QString& key) const;
     QString m_configPath;
+    QString m_registryInstallId;
     QString m_error;
 };

Common/DeviceIdentityHelper.cpp

@@ -1,5 +1,7 @@
 #include "DeviceIdentityHelper.h"
 #include "ConfigHelper.h"
+
+#include <QCoreApplication>
 #include <QCryptographicHash>
 #include <QDateTime>
 #include <QDir>
@@ -7,43 +9,315 @@
 #include <QFile>
 #include <QJsonDocument>
 #include <QJsonObject>
+#include <QJsonParseError>
 #include <QNetworkAccessManager>
 #include <QNetworkReply>
 #include <QNetworkRequest>
-#include <QSaveFile>
 #include <QSysInfo>
-#include <QUuid>
 #include <QTimer>
+#include <QUuid>
+
 #ifdef HAVE_OPENSSL
 #include <openssl/evp.h>
 #include <openssl/pem.h>
 #endif
-DeviceIdentityHelper::DeviceIdentityHelper(const QString& dir):m_installDir(dir){}
-QString DeviceIdentityHelper::deviceId() const{return m_deviceId;}
-QString DeviceIdentityHelper::errorString() const{return m_error;}
-bool DeviceIdentityHelper::verifySignature(const QByteArray& payload,const QString& sig64){
+
+namespace {
+
+QString manifestPublicKeyPath(const QString &installDir)
+{
+    return QDir(installDir).filePath(QStringLiteral("config/manifest_public_key.pem"));
+}
+
+} // namespace
+
+DeviceIdentityHelper::DeviceIdentityHelper(const QString &installDir)
+    : m_installDir(installDir)
+{
+}
+
+QString DeviceIdentityHelper::deviceId() const
+{
+    return m_deviceId;
+}
+
+QString DeviceIdentityHelper::errorString() const
+{
+    return m_error;
+}
+
+bool DeviceIdentityHelper::verifySignature(const QByteArray &payload, const QString &signatureBase64)
+{
 #ifndef HAVE_OPENSSL
- Q_UNUSED(payload);Q_UNUSED(sig64);m_error="OpenSSL unavailable";return false;
+    Q_UNUSED(payload);
+    Q_UNUSED(signatureBase64);
+    m_error = QCoreApplication::translate(
+        "DeviceIdentityHelper",
+        "OpenSSL is unavailable, so device credential signature cannot be verified.");
+    return false;
 #else
- QFile f(QDir(m_installDir).filePath("config/manifest_public_key.pem")); if(!f.open(QIODevice::ReadOnly)){m_error="device public key missing";return false;}
- QByteArray kd=f.readAll();BIO* b=BIO_new_mem_buf(kd.constData(),kd.size());EVP_PKEY* k=b?PEM_read_bio_PUBKEY(b,nullptr,nullptr,nullptr):nullptr;if(b)BIO_free(b);if(!k){m_error="device public key invalid";return false;}
- EVP_MD_CTX* c=EVP_MD_CTX_new();QByteArray sig=QByteArray::fromBase64(sig64.toUtf8());bool ok=c&&EVP_DigestVerifyInit(c,nullptr,EVP_sha256(),nullptr,k)==1&&EVP_DigestVerifyUpdate(c,payload.constData(),payload.size())==1&&EVP_DigestVerifyFinal(c,reinterpret_cast<const unsigned char*>(sig.constData()),sig.size())==1;if(c)EVP_MD_CTX_free(c);EVP_PKEY_free(k);if(!ok)m_error="device credential RSA signature invalid";return ok;
+    const QString keyPath = manifestPublicKeyPath(m_installDir);
+    QFile keyFile(keyPath);
+    if (!keyFile.open(QIODevice::ReadOnly)) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "Device public key is missing: %1").arg(keyPath);
+        return false;
+    }
+
+    const QByteArray keyData = keyFile.readAll();
+    BIO *bio = BIO_new_mem_buf(keyData.constData(), keyData.size());
+    EVP_PKEY *publicKey = bio ? PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr) : nullptr;
+    if (bio) {
+        BIO_free(bio);
+    }
+    if (!publicKey) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "Device public key is invalid: %1").arg(keyPath);
+        return false;
+    }
+
+    EVP_MD_CTX *ctx = EVP_MD_CTX_new();
+    const QByteArray signature = QByteArray::fromBase64(signatureBase64.toUtf8());
+    const bool ok = ctx
+        && EVP_DigestVerifyInit(ctx, nullptr, EVP_sha256(), nullptr, publicKey) == 1
+        && EVP_DigestVerifyUpdate(ctx, payload.constData(), payload.size()) == 1
+        && EVP_DigestVerifyFinal(
+               ctx,
+               reinterpret_cast<const unsigned char *>(signature.constData()),
+               signature.size()) == 1;
+
+    if (ctx) {
+        EVP_MD_CTX_free(ctx);
+    }
+    EVP_PKEY_free(publicKey);
+
+    if (!ok) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "Device credential signature is invalid. The local identity file may not match this server.");
+    }
+    return ok;
 #endif
 }
-bool DeviceIdentityHelper::loadAndVerify(const QString& appId,const QString& channel){
- QFile f(QDir(m_installDir).filePath("config/client_identity.dat"));if(!f.open(QIODevice::ReadOnly))return false;QJsonParseError e;auto d=QJsonDocument::fromJson(f.readAll(),&e);if(e.error!=QJsonParseError::NoError||!d.isObject()){m_error="device credential JSON invalid";return false;}auto w=d.object();QByteArray text=w.value("identity_text").toString().toUtf8();if(text.isEmpty()||!verifySignature(text,w.value("signature").toString()))return false;auto identity=QJsonDocument::fromJson(text).object();QDateTime expiry=QDateTime::fromString(identity.value("valid_until").toString(),Qt::ISODate);if(identity.value("app_id").toString()!=appId||identity.value("channel").toString()!=channel||identity.value("license_id").toString().isEmpty()||identity.value("installation_id").toString().isEmpty()||identity.value("device_id").toString().isEmpty()){m_error="device/license credential identity mismatch";return false;}if(!expiry.isValid()||expiry<=QDateTime::currentDateTimeUtc()){m_error="license expired";return false;}m_deviceId=identity.value("device_id").toString();return true;
+
+bool DeviceIdentityHelper::loadAndVerify(const QString &expectedAppId, const QString &expectedChannel)
+{
+    // client_identity.dat 是服务端签发的本机设备凭证，不是用户可手写配置。
+    // 本地启动时先用公钥校验签名，再校验 app/channel/license/installation/device 和有效期。
+    QString credentialPath = ConfigHelper::instance().clientIdentityPath();
+    if (!QFile::exists(credentialPath)) {
+        credentialPath = QDir(m_installDir).filePath(QStringLiteral("config/client_identity.dat"));
+    }
+
+    QFile credentialFile(credentialPath);
+    if (!credentialFile.open(QIODevice::ReadOnly)) {
+        return false;
+    }
+
+    QJsonParseError parseError;
+    const QJsonDocument wrapperDoc = QJsonDocument::fromJson(credentialFile.readAll(), &parseError);
+    if (parseError.error != QJsonParseError::NoError || !wrapperDoc.isObject()) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "Device credential file is not valid JSON: %1")
+                      .arg(credentialPath);
+        return false;
+    }
+
+    const QJsonObject wrapper = wrapperDoc.object();
+    const QByteArray identityText = wrapper.value(QStringLiteral("identity_text")).toString().toUtf8();
+    const QString signature = wrapper.value(QStringLiteral("signature")).toString();
+    if (identityText.isEmpty() || !verifySignature(identityText, signature)) {
+        return false;
+    }
+
+    const QJsonDocument identityDoc = QJsonDocument::fromJson(identityText);
+    const QJsonObject identity = identityDoc.object();
+    const QDateTime expiry = QDateTime::fromString(
+        identity.value(QStringLiteral("valid_until")).toString(),
+        Qt::ISODate);
+
+    const bool identityMatches = identity.value(QStringLiteral("app_id")).toString() == expectedAppId
+        && identity.value(QStringLiteral("channel")).toString() == expectedChannel
+        && !identity.value(QStringLiteral("license_id")).toString().isEmpty()
+        && !identity.value(QStringLiteral("installation_id")).toString().isEmpty()
+        && !identity.value(QStringLiteral("device_id")).toString().isEmpty();
+    if (!identityMatches) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "Device credential does not match this application, channel, license, installation or device.");
+        return false;
+    }
+
+    if (!expiry.isValid() || expiry <= QDateTime::currentDateTimeUtc()) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "License has expired. Please ask the administrator to issue a new License.");
+        return false;
+    }
+
+    m_deviceId = identity.value(QStringLiteral("device_id")).toString();
+    return true;
 }
-bool DeviceIdentityHelper::verifyLocal(const QString& appId,const QString& channel){m_error.clear();return loadAndVerify(appId,channel);}
-bool DeviceIdentityHelper::ensureIssued(const QString& base,const QString& token,const QString& appId,const QString& channel,const QString& licenseKey){
- m_error.clear();if(loadAndVerify(appId,channel)){ConfigHelper::instance().setValue("Update","device_id",m_deviceId);return true;}
- const QString trimmedBase=base.trimmed();
- if(appId.trimmed().isEmpty()){m_error="app_id is empty in config/app_config.json";return false;}
- if(channel.trimmed().isEmpty()){m_error="channel is empty in config/app_config.json";return false;}
- if(trimmedBase.isEmpty()||trimmedBase.contains("YOUR_SERVER_IP",Qt::CaseInsensitive)){m_error="api_base_url is not configured. Set it to the update server address, for example http://192.168.229.128:8000";return false;}
- if(token.trimmed().isEmpty()){m_error="client_token is empty in config/app_config.json";return false;}
- if(licenseKey.trimmed().isEmpty()){m_error="license_key is empty. Create a License in the admin page and paste the generated key into config/app_config.json";return false;}
- ConfigHelper& config=ConfigHelper::instance();
- QString installation=config.getValue("Device","installation_id");if(installation.isEmpty()){installation=QUuid::createUuid().toString(QUuid::WithoutBraces);if(!config.setValue("Device","installation_id",installation)){m_error=QString("cannot save installation id to %1: %2").arg(config.configPath(),config.lastError());return false;}}
- QByteArray machine=QSysInfo::machineUniqueId()+installation.toUtf8();QString mh=QString::fromLatin1(QCryptographicHash::hash(machine,QCryptographicHash::Sha256).toHex());QJsonObject body{{"app_id",appId},{"channel",channel},{"license_key",licenseKey},{"installation_id",installation},{"machine_hash",mh}};
- QNetworkAccessManager manager;QNetworkRequest req{QUrl(trimmedBase+"/api/v1/device/issue")};req.setHeader(QNetworkRequest::ContentTypeHeader,"application/json");req.setRawHeader("X-Client-Token",token.toUtf8());QNetworkReply* reply=manager.post(req,QJsonDocument(body).toJson(QJsonDocument::Compact));QEventLoop loop;bool timeoutOk=false;int timeoutMs=ConfigHelper::instance().getValue("Update","request_timeout_ms").toInt(&timeoutOk);if(!timeoutOk||timeoutMs<1000)timeoutMs=5000;QTimer timer;timer.setSingleShot(true);QObject::connect(&timer,&QTimer::timeout,[&](){if(reply&&reply->isRunning())reply->abort();});QObject::connect(reply,&QNetworkReply::finished,&loop,&QEventLoop::quit);timer.start(timeoutMs);loop.exec();timer.stop();int status=reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();QByteArray raw=reply->readAll();reply->deleteLater();if(status!=200){m_error=QString("device issue failed (HTTP %1): %2").arg(status).arg(QString::fromUtf8(raw));return false;}auto response=QJsonDocument::fromJson(raw).object();QJsonObject wrapper{{"identity_text",response.value("identity_text")},{"signature",response.value("signature")}};QString path=QDir(m_installDir).filePath("config/client_identity.dat");QSaveFile out(path);QByteArray bytes=QJsonDocument(wrapper).toJson(QJsonDocument::Compact);if(!out.open(QIODevice::WriteOnly)||out.write(bytes)!=bytes.size()||!out.commit()){m_error=QString("cannot save device credential to %1: %2").arg(path,out.errorString());return false;}if(!loadAndVerify(appId,channel))return false;if(!config.setValue("Update","device_id",m_deviceId)){m_error=QString("cannot save server device id to %1: %2").arg(config.configPath(),config.lastError());return false;}return true;
+
+bool DeviceIdentityHelper::verifyLocal(const QString &appId, const QString &channel)
+{
+    m_error.clear();
+    return loadAndVerify(appId, channel);
+}
+
+bool DeviceIdentityHelper::ensureIssued(
+    const QString &apiBaseUrl,
+    const QString &clientToken,
+    const QString &appId,
+    const QString &channel,
+    const QString &licenseKey)
+{
+    // 首次启动或本地凭证失效时，Launcher 会拿 License 向服务端登记设备。
+    // 服务端返回签名后的 identity_text，客户端保存为 client_identity.dat，并把真实 device_id 写入运行配置。
+    m_error.clear();
+    if (loadAndVerify(appId, channel)) {
+        ConfigHelper::instance().setValue(QStringLiteral("Update"), QStringLiteral("device_id"), m_deviceId);
+        return true;
+    }
+
+    const QString trimmedBaseUrl = apiBaseUrl.trimmed();
+    if (appId.trimmed().isEmpty()) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "app_id is empty in app_config.json.");
+        return false;
+    }
+    if (channel.trimmed().isEmpty()) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "channel is empty in app_config.json.");
+        return false;
+    }
+    if (trimmedBaseUrl.isEmpty() || trimmedBaseUrl.contains(QStringLiteral("YOUR_SERVER_IP"), Qt::CaseInsensitive)) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "Server address is not configured. Set config/server_config.json before building Launcher, for example: http://192.168.229.128:8000");
+        return false;
+    }
+    if (clientToken.trimmed().isEmpty()) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "client_token is empty. Copy the client_token generated by the admin page into app_config.json.");
+        return false;
+    }
+    if (licenseKey.trimmed().isEmpty()) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "License is empty. Create or select a License in the admin page, then copy the generated client configuration.");
+        return false;
+    }
+
+    ConfigHelper &config = ConfigHelper::instance();
+    QString installationId = config.getValue(QStringLiteral("Device"), QStringLiteral("installation_id"));
+    if (installationId.isEmpty()) {
+        installationId = QUuid::createUuid().toString(QUuid::WithoutBraces);
+        if (!config.setValue(QStringLiteral("Device"), QStringLiteral("installation_id"), installationId)) {
+            m_error = QCoreApplication::translate("DeviceIdentityHelper", "Cannot save installation id to %1: %2")
+                          .arg(config.configPath(), config.lastError());
+            return false;
+        }
+    }
+
+    const QByteArray machine = QSysInfo::machineUniqueId() + installationId.toUtf8();
+    const QString machineHash = QString::fromLatin1(
+        QCryptographicHash::hash(machine, QCryptographicHash::Sha256).toHex());
+    const QJsonObject body{
+        {QStringLiteral("app_id"), appId},
+        {QStringLiteral("channel"), channel},
+        {QStringLiteral("license_key"), licenseKey},
+        {QStringLiteral("installation_id"), installationId},
+        {QStringLiteral("machine_hash"), machineHash},
+    };
+
+    QNetworkAccessManager manager;
+    QNetworkRequest request{QUrl(trimmedBaseUrl + QStringLiteral("/api/v1/device/issue"))};
+    request.setHeader(QNetworkRequest::ContentTypeHeader, QStringLiteral("application/json"));
+    request.setRawHeader("X-Client-Token", clientToken.toUtf8());
+
+    QNetworkReply *reply = manager.post(request, QJsonDocument(body).toJson(QJsonDocument::Compact));
+    QEventLoop loop;
+    QTimer timer;
+    timer.setSingleShot(true);
+
+    bool timeoutOk = false;
+    int timeoutMs = ConfigHelper::instance()
+                        .getValue(QStringLiteral("Update"), QStringLiteral("request_timeout_ms"))
+                        .toInt(&timeoutOk);
+    if (!timeoutOk || timeoutMs < 1000) {
+        timeoutMs = 5000;
+    }
+
+    QObject::connect(&timer, &QTimer::timeout, [&]() {
+        if (reply && reply->isRunning()) {
+            reply->abort();
+        }
+    });
+    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
+
+    timer.start(timeoutMs);
+    loop.exec();
+    timer.stop();
+
+    const int status = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    const QString networkError = reply->errorString();
+    const QByteArray raw = reply->readAll();
+    reply->deleteLater();
+    if (status != 200) {
+        QJsonParseError responseError;
+        const QJsonDocument errorDoc = QJsonDocument::fromJson(raw, &responseError);
+        QString serverMessage;
+        if (responseError.error == QJsonParseError::NoError && errorDoc.isObject()) {
+            const QJsonValue detail = errorDoc.object().value(QStringLiteral("detail"));
+            serverMessage = detail.isObject()
+                ? detail.toObject().value(QStringLiteral("msg")).toString()
+                : detail.toString();
+        }
+        if (serverMessage.isEmpty())
+            serverMessage = QString::fromUtf8(raw).trimmed();
+
+        if (status == 0) {
+            m_error = QCoreApplication::translate(
+                "DeviceIdentityHelper",
+                "Cannot contact the update server to issue device identity.\nServer: %1\nApp: %2\nChannel: %3\nNetwork error: %4\nTimeout: %5 ms")
+                .arg(trimmedBaseUrl, appId, channel, networkError, QString::number(timeoutMs));
+        } else {
+            m_error = QCoreApplication::translate(
+                "DeviceIdentityHelper",
+                "Device identity request was rejected by the update server.\nServer: %1\nHTTP status: %2\nApp: %3\nChannel: %4\nServer message: %5")
+                .arg(trimmedBaseUrl, QString::number(status), appId, channel,
+                     serverMessage.isEmpty() ? QCoreApplication::translate("DeviceIdentityHelper", "<empty response>") : serverMessage);
+        }
+        return false;
+    }
+
+    const QJsonDocument responseDoc = QJsonDocument::fromJson(raw);
+    const QJsonObject response = responseDoc.object();
+    if (response.value(QStringLiteral("identity_text")).toString().isEmpty()
+        || response.value(QStringLiteral("signature")).toString().isEmpty()) {
+        m_error = QCoreApplication::translate(
+            "DeviceIdentityHelper",
+            "Server returned an invalid device identity response.");
+        return false;
+    }
+
+    const QJsonObject wrapper{
+        {QStringLiteral("identity_text"), response.value(QStringLiteral("identity_text"))},
+        {QStringLiteral("signature"), response.value(QStringLiteral("signature"))},
+    };
+    const QByteArray credentialBytes = QJsonDocument(wrapper).toJson(QJsonDocument::Compact);
+    const QString credentialPath = config.clientIdentityPath();
+
+    QString writeError;
+    if (!ConfigHelper::writeFileWithElevationIfNeeded(credentialPath, credentialBytes, &writeError)) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "Cannot save device credential to %1: %2")
+                      .arg(credentialPath, writeError);
+        return false;
+    }
+    if (!loadAndVerify(appId, channel)) {
+        return false;
+    }
+    if (!config.setValue(QStringLiteral("Update"), QStringLiteral("device_id"), m_deviceId)) {
+        m_error = QCoreApplication::translate("DeviceIdentityHelper", "Cannot save server device id to %1: %2")
+                      .arg(config.configPath(), config.lastError());
+        return false;
+    }
+    return true;
 }

Common/DeviceIdentityHelper.h

@@ -1,15 +1,28 @@
 #pragma once
+
+#include <QByteArray>
 #include <QString>
+
 class DeviceIdentityHelper {
 public:
- explicit DeviceIdentityHelper(const QString& installDir);
- bool ensureIssued(const QString& apiBaseUrl, const QString& clientToken, const QString& appId,
-                   const QString& channel, const QString& licenseKey);
- bool verifyLocal(const QString& appId, const QString& channel);
- QString deviceId() const;
- QString errorString() const;
+    explicit DeviceIdentityHelper(const QString &installDir);
+
+    bool ensureIssued(
+        const QString &apiBaseUrl,
+        const QString &clientToken,
+        const QString &appId,
+        const QString &channel,
+        const QString &licenseKey);
+    bool verifyLocal(const QString &appId, const QString &channel);
+
+    QString deviceId() const;
+    QString errorString() const;
+
 private:
- bool loadAndVerify(const QString& expectedAppId, const QString& expectedChannel);
- bool verifySignature(const QByteArray& payload, const QString& signatureBase64);
- QString m_installDir, m_deviceId, m_error;
+    bool loadAndVerify(const QString &expectedAppId, const QString &expectedChannel);
+    bool verifySignature(const QByteArray &payload, const QString &signatureBase64);
+
+    QString m_installDir;
+    QString m_deviceId;
+    QString m_error;
 };

Common/FileHelper.cpp

@@ -1,5 +1,20 @@
-#include "FileHelper.h"
-#include <QDebug>
+#include "FileHelper.h"
+#include <QDebug>
+#include <QFileInfo>
+#include <QThread>
+
+namespace
+{
+QString processImageName(const QString& exeName)
+{
+    QString name = QFileInfo(exeName).fileName().trimmed();
+#ifndef Q_OS_WIN
+    if (name.endsWith(QStringLiteral(".exe"), Qt::CaseInsensitive))
+        name.chop(4);
+#endif
+    return name;
+}
+}
 
 bool FileHelper::createDir(const QString &path)
 {
@@ -13,30 +28,70 @@ bool FileHelper::copyFileOverwrite(const QString &src, const QString &dst)
 {
     if (QFile::exists(dst))
     {
-        if (!QFile::remove(dst))
-        {
-            qDebug() << "无法删除旧文件:" << dst;
-            return false;
-        }
+        if (!QFile::remove(dst))
+        {
+            qDebug() << "Cannot remove old file:" << dst;
+            return false;
+        }
     }
     return QFile::copy(src, dst);
 }
 
-bool FileHelper::isProcessRunning(const QString &exeName)
-{
-    QProcess process;
-    process.start("tasklist");
-    process.waitForFinished();
-    QString output = process.readAllStandardOutput();
-    return output.contains(exeName, Qt::CaseInsensitive);
-}
-
-bool FileHelper::killProcess(const QString &exeName)
-{
-    if (!isProcessRunning(exeName))
-        return true;
-    QProcess process;
-    process.start("taskkill /f /im " + exeName);
-    process.waitForFinished(1000);
-    return !isProcessRunning(exeName);
-}
+bool FileHelper::isProcessRunning(const QString &exeName)
+{
+    const QString imageName = processImageName(exeName);
+    if (imageName.isEmpty())
+        return false;
+
+    QProcess process;
+#ifdef Q_OS_WIN
+    process.start(QStringLiteral("tasklist"), QStringList{
+        QStringLiteral("/FI"),
+        QStringLiteral("IMAGENAME eq %1").arg(imageName)
+    });
+    process.waitForFinished();
+    const QString output = QString::fromLocal8Bit(process.readAllStandardOutput());
+    return output.contains(imageName, Qt::CaseInsensitive);
+#elif defined(Q_OS_UNIX)
+    process.start(QStringLiteral("pgrep"), QStringList{
+        QStringLiteral("-x"),
+        imageName
+    });
+    process.waitForFinished(1000);
+    return process.exitStatus() == QProcess::NormalExit && process.exitCode() == 0;
+#else
+    return false;
+#endif
+}
+
+bool FileHelper::killProcess(const QString &exeName)
+{
+    if (!isProcessRunning(exeName))
+        return true;
+    const QString imageName = processImageName(exeName);
+    if (imageName.isEmpty())
+        return true;
+
+    QProcess process;
+#ifdef Q_OS_WIN
+    process.start(QStringLiteral("taskkill"), QStringList{
+        QStringLiteral("/f"),
+        QStringLiteral("/im"),
+        imageName
+    });
+#elif defined(Q_OS_UNIX)
+    process.start(QStringLiteral("pkill"), QStringList{
+        QStringLiteral("-x"),
+        imageName
+    });
+#else
+    return false;
+#endif
+    process.waitForFinished(3000);
+    for (int i = 0; i < 20; ++i) {
+        if (!isProcessRunning(imageName))
+            return true;
+        QThread::msleep(100);
+    }
+    return false;
+}

Common/HttpHelper.cpp

@@ -1,67 +1,70 @@
-#include "HttpHelper.h"
-#include <QNetworkProxy>
-#include "ConfigHelper.h"
-#include <QFile>
-#include <QDir>
-#include <QApplication>
-#include <QTimer>
-
-void HttpHelper::postRequest(const QString& url, const QJsonObject& jsonBody,
-    std::function<void(int code, const QJsonObject& resp)> callback)
-{
-    QNetworkAccessManager* manager = new QNetworkAccessManager();
-    manager->setProxy(QNetworkProxy::NoProxy);
-
-    QNetworkRequest req(url);
-    req.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
-    // Add auth token header
-    QString token = ConfigHelper::instance().getValue("Server", "client_token");
-    req.setRawHeader("X-Client-Token", token.toUtf8());
-    QFile identity(QDir(QApplication::applicationDirPath()).filePath("config/client_identity.dat"));
-    if (identity.open(QIODevice::ReadOnly))
-        req.setRawHeader("X-Device-Credential", identity.readAll().toBase64());
-
-    QByteArray data = QJsonDocument(jsonBody).toJson(QJsonDocument::Compact);
-    qDebug() << "=== POST Request ===";
-    qDebug() << "Url:" << url;
-    qDebug() << "Body:" << data;
-
-    QNetworkReply* reply = manager->post(req, data);
-    QEventLoop loop;
-    bool timeoutOk = false;
-    int timeoutMs = ConfigHelper::instance().getValue("Update", "request_timeout_ms").toInt(&timeoutOk);
-    if (!timeoutOk || timeoutMs < 1000) timeoutMs = 5000;
-    QTimer timer;
-    timer.setSingleShot(true);
-    QObject::connect(&timer, &QTimer::timeout, [&]() {
-        if (reply && reply->isRunning()) {
-            qDebug() << "Request timeout, abort:" << url;
-            reply->abort();
-        }
-    });
-
-    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
-    timer.start(timeoutMs);
-    loop.exec();
-    timer.stop();
-
-    int retCode = 0;
-    QJsonObject retObj;
-
-    retCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
-    const QByteArray respData = reply->readAll();
-    if (!respData.isEmpty()) {
-        qDebug() << "Server raw response:" << respData;
-        retObj = QJsonDocument::fromJson(respData).object();
-    }
-    if (reply->error() != QNetworkReply::NoError)
-    {
-        qDebug() << "Network error code:" << reply->error();
-        qDebug() << "HTTP status:" << retCode << "detail:" << reply->errorString();
-    }
-
-    callback(retCode, retObj);
-
-    reply->deleteLater();
-    manager->deleteLater();
-}
+#include "HttpHelper.h"
+#include <QNetworkProxy>
+#include "ConfigHelper.h"
+#include <QFile>
+#include <QDir>
+#include <QApplication>
+#include <QTimer>
+
+void HttpHelper::postRequest(const QString& url, const QJsonObject& jsonBody,
+    std::function<void(int code, const QJsonObject& resp)> callback)
+{
+    QNetworkAccessManager* manager = new QNetworkAccessManager();
+    manager->setProxy(QNetworkProxy::NoProxy);
+
+    QNetworkRequest req(url);
+    req.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
+    // Add auth token header
+    QString token = ConfigHelper::instance().getValue("Server", "client_token");
+    req.setRawHeader("X-Client-Token", token.toUtf8());
+    QString identityPath = ConfigHelper::instance().clientIdentityPath();
+    if (!QFile::exists(identityPath))
+        identityPath = QDir(QApplication::applicationDirPath()).filePath("config/client_identity.dat");
+    QFile identity(identityPath);
+    if (identity.open(QIODevice::ReadOnly))
+        req.setRawHeader("X-Device-Credential", identity.readAll().toBase64());
+
+    QByteArray data = QJsonDocument(jsonBody).toJson(QJsonDocument::Compact);
+    qDebug() << "=== POST Request ===";
+    qDebug() << "Url:" << url;
+    qDebug() << "Body:" << data;
+
+    QNetworkReply* reply = manager->post(req, data);
+    QEventLoop loop;
+    bool timeoutOk = false;
+    int timeoutMs = ConfigHelper::instance().getValue("Update", "request_timeout_ms").toInt(&timeoutOk);
+    if (!timeoutOk || timeoutMs < 1000) timeoutMs = 5000;
+    QTimer timer;
+    timer.setSingleShot(true);
+    QObject::connect(&timer, &QTimer::timeout, [&]() {
+        if (reply && reply->isRunning()) {
+            qDebug() << "Request timeout, abort:" << url;
+            reply->abort();
+        }
+    });
+
+    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
+    timer.start(timeoutMs);
+    loop.exec();
+    timer.stop();
+
+    int retCode = 0;
+    QJsonObject retObj;
+
+    retCode = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt();
+    const QByteArray respData = reply->readAll();
+    if (!respData.isEmpty()) {
+        qDebug() << "Server raw response:" << respData;
+        retObj = QJsonDocument::fromJson(respData).object();
+    }
+    if (reply->error() != QNetworkReply::NoError)
+    {
+        qDebug() << "Network error code:" << reply->error();
+        qDebug() << "HTTP status:" << retCode << "detail:" << reply->errorString();
+    }
+
+    callback(retCode, retObj);
+
+    reply->deleteLater();
+    manager->deleteLater();
+}

Common/HttpHelper.h

@@ -11,7 +11,7 @@
 class HttpHelper
 {
 public:
-    // 每次调用独立创建manager，不做成成员变量
+    // Create an independent manager for each call instead of keeping it as a member.
     static void postRequest(const QString& url, const QJsonObject& jsonBody,
         std::function<void(int code, const QJsonObject& resp)> callback);
-};
+};

Common/IntegrityHelper.cpp

@@ -1,153 +1,216 @@
-#include "IntegrityHelper.h"
-#include "ConfigHelper.h"
-#include <QCryptographicHash>
-#include <QDir>
-#include <QDirIterator>
-#include <QFile>
-#include <QFileInfo>
+#include "IntegrityHelper.h"
+#include "ConfigHelper.h"
+#include <QCryptographicHash>
+#include <QDir>
+#include <QDirIterator>
+#include <QFile>
+#include <QFileInfo>
 #include <QJsonArray>
+#include <QCoreApplication>
 #include <QJsonDocument>
-#include <QJsonObject>
-#include <QSet>
-#ifdef HAVE_OPENSSL
-#include <openssl/evp.h>
-#include <openssl/pem.h>
-#endif
-
-IntegrityHelper::IntegrityHelper(const QString& installDir)
-    : m_installDir(QDir::cleanPath(installDir)) {}
-
-QString IntegrityHelper::errorString() const { return m_error; }
-
-bool IntegrityHelper::safeRelativePath(const QString& path) const
-{
-    const QString clean = QDir::cleanPath(QDir::fromNativeSeparators(path));
-    return !clean.isEmpty() && !QDir::isAbsolutePath(clean) && clean != ".."
-        && !clean.startsWith("../") && !clean.contains(":");
-}
-
+#include <QJsonObject>
+#include <QSet>
+#ifdef HAVE_OPENSSL
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+#endif
+
+IntegrityHelper::IntegrityHelper(const QString& installDir)
+    : m_installDir(QDir::cleanPath(installDir)) {}
+
+QString IntegrityHelper::errorString() const { return m_error; }
+
+bool IntegrityHelper::safeRelativePath(const QString& path) const
+{
+    const QString clean = QDir::cleanPath(QDir::fromNativeSeparators(path));
+    return !clean.isEmpty() && !QDir::isAbsolutePath(clean) && clean != ".."
+        && !clean.startsWith("../") && !clean.contains(":");
+}
+
 bool IntegrityHelper::runtimeProtectedPath(const QString& path) const
 {
+    // 这些文件属于 SDK 运行态，不参与业务版本文件的 Manifest 校验。
+    // 例如 app_config.json、client_identity.dat 会随安装机器变化，不能要求它们和发布包 hash 完全一致。
     const QString p = QDir::fromNativeSeparators(path).toCaseFolded();
     QSet<QString> protectedPaths{
-        "bootstrap.exe", "client.ini", "config/app_config.json", "config/local_state.json",
+        "bootstrap", "bootstrap.exe", "client.ini", "config/app_config.json", "config/local_state.json",
         "config/client_identity.dat", "config/version_policy.dat"
     };
     const QString runtimePrefix = ConfigHelper::instance().runtimeRelativePath().toCaseFolded();
     if (!runtimePrefix.isEmpty()) {
         const QStringList runtimeProtected{
-            "bootstrap.exe", "client.ini", "config/app_config.json", "config/local_state.json",
+            "bootstrap", "bootstrap.exe", "client.ini", "config/app_config.json", "config/local_state.json",
             "config/client_identity.dat", "config/version_policy.dat"
         };
-        for (const QString& protectedPath : runtimeProtected)
-            protectedPaths.insert(runtimePrefix + "/" + protectedPath);
-    }
-    return protectedPaths.contains(p);
-}
-
-QString IntegrityHelper::sha256(const QString& filePath) const
-{
-    QFile file(filePath);
-    if (!file.open(QIODevice::ReadOnly)) return {};
-    QCryptographicHash hash(QCryptographicHash::Sha256);
-    while (!file.atEnd()) hash.addData(file.read(1024 * 1024));
-    return QString::fromLatin1(hash.result().toHex());
-}
-
-bool IntegrityHelper::verifySignature(const QByteArray& payload, const QString& signatureBase64)
-{
+        for (const QString& protectedPath : runtimeProtected)
+            protectedPaths.insert(runtimePrefix + "/" + protectedPath);
+    }
+    return protectedPaths.contains(p);
+}
+
+QString IntegrityHelper::sha256(const QString& filePath) const
+{
+    QFile file(filePath);
+    if (!file.open(QIODevice::ReadOnly)) return {};
+    QCryptographicHash hash(QCryptographicHash::Sha256);
+    while (!file.atEnd()) hash.addData(file.read(1024 * 1024));
+    return QString::fromLatin1(hash.result().toHex());
+}
+
+bool IntegrityHelper::verifySignature(const QByteArray& payload, const QString& signatureBase64)
+{
 #ifndef HAVE_OPENSSL
-    Q_UNUSED(payload); Q_UNUSED(signatureBase64); m_error = "OpenSSL unavailable"; return false;
+    Q_UNUSED(payload); Q_UNUSED(signatureBase64);
+    m_error = QCoreApplication::translate("IntegrityHelper",
+        "Cannot verify signed manifest because OpenSSL support is unavailable. Stage: installed version verification.");
+    return false;
 #else
-    QString keyPath = QDir(m_installDir).filePath("config/manifest_public_key.pem");
+    QString keyPath = QDir(m_installDir).filePath("config/manifest_public_key.pem");
     if (!QFile::exists(keyPath))
         keyPath = QFileInfo(ConfigHelper::instance().configPath()).dir().filePath("manifest_public_key.pem");
     QFile keyFile(keyPath);
-    if (!keyFile.open(QIODevice::ReadOnly)) { m_error = "manifest public key missing"; return false; }
-    const QByteArray keyData = keyFile.readAll();
-    BIO* bio = BIO_new_mem_buf(keyData.constData(), keyData.size());
-    EVP_PKEY* key = bio ? PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr) : nullptr;
-    if (bio) BIO_free(bio);
-    if (!key) { m_error = "manifest public key invalid"; return false; }
-    EVP_MD_CTX* ctx = EVP_MD_CTX_new();
-    const QByteArray signature = QByteArray::fromBase64(signatureBase64.toUtf8());
-    const bool ok = ctx && EVP_DigestVerifyInit(ctx, nullptr, EVP_sha256(), nullptr, key) == 1
-        && EVP_DigestVerifyUpdate(ctx, payload.constData(), payload.size()) == 1
-        && EVP_DigestVerifyFinal(ctx, reinterpret_cast<const unsigned char*>(signature.constData()), signature.size()) == 1;
-    if (ctx) EVP_MD_CTX_free(ctx);
-    EVP_PKEY_free(key);
-    if (!ok) m_error = "manifest RSA signature invalid";
+    if (!keyFile.open(QIODevice::ReadOnly)) {
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Cannot open manifest public key. Stage: installed version verification. Public key path: %1.")
+            .arg(keyPath);
+        return false;
+    }
+    const QByteArray keyData = keyFile.readAll();
+    BIO* bio = BIO_new_mem_buf(keyData.constData(), keyData.size());
+    EVP_PKEY* key = bio ? PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr) : nullptr;
+    if (bio) BIO_free(bio);
+    if (!key) {
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Manifest public key is invalid. Stage: installed version verification. Public key path: %1.")
+            .arg(keyPath);
+        return false;
+    }
+    EVP_MD_CTX* ctx = EVP_MD_CTX_new();
+    const QByteArray signature = QByteArray::fromBase64(signatureBase64.toUtf8());
+    const bool ok = ctx && EVP_DigestVerifyInit(ctx, nullptr, EVP_sha256(), nullptr, key) == 1
+        && EVP_DigestVerifyUpdate(ctx, payload.constData(), payload.size()) == 1
+        && EVP_DigestVerifyFinal(ctx, reinterpret_cast<const unsigned char*>(signature.constData()), signature.size()) == 1;
+    if (ctx) EVP_MD_CTX_free(ctx);
+    EVP_PKEY_free(key);
+    if (!ok) {
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Manifest RSA signature is invalid. Stage: installed version verification. This usually means the cached manifest was changed, the client public key does not match the server private key, or the wrong version cache is being used.");
+    }
     return ok;
 #endif
 }
-
+
 bool IntegrityHelper::verifyInstalledVersion(const QString& appId, const QString& channel,
                                              const QString& version)
 {
     m_error.clear();
+    // Manifest cache 来自服务端发布版本时生成的签名清单。
+    // 客户端先验签 Manifest，再逐个校验文件 SHA256，防止升级文件被篡改或漏替换。
     QString cachePath = QDir(ConfigHelper::instance().updateRoot()).filePath(
-        "manifest_cache/manifest_" + version + ".json");
-    const QString legacyCachePath = QDir(m_installDir).filePath(
-        "update/manifest_cache/manifest_" + version + ".json");
-    if (!QFile::exists(cachePath))
-        cachePath = legacyCachePath;
-    QFile cache(cachePath);
-    if (!cache.open(QIODevice::ReadOnly)) { m_error = "signed manifest cache missing for " + version; return false; }
-    QJsonParseError wrapperError;
+        "manifest_cache/manifest_" + version + ".json");
+    const QString legacyCachePath = QDir(m_installDir).filePath(
+        "update/manifest_cache/manifest_" + version + ".json");
+    if (!QFile::exists(cachePath))
+        cachePath = legacyCachePath;
+    QFile cache(cachePath);
+    if (!cache.open(QIODevice::ReadOnly)) {
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Local signed manifest cache is missing. Stage: installed version verification. Version: %1. Expected cache file: %2. This cache is created after the same version is published or installed successfully.")
+            .arg(version, cachePath);
+        return false;
+    }
+    QJsonParseError wrapperError;
     const QJsonDocument wrapperDoc = QJsonDocument::fromJson(cache.readAll(), &wrapperError);
     if (wrapperError.error != QJsonParseError::NoError || !wrapperDoc.isObject()) {
-        m_error = "manifest cache JSON invalid"; return false;
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Local signed manifest cache is not valid JSON. Stage: installed version verification. Version: %1. File: %2. JSON error: %3.")
+            .arg(version, cachePath, wrapperError.errorString());
+        return false;
     }
-    const QJsonObject wrapper = wrapperDoc.object();
-    const QByteArray manifestText = wrapper.value("manifest_text").toString().toUtf8();
-    const QString signature = wrapper.value("manifest").toObject().value("signature").toString();
-    if (manifestText.isEmpty() || signature.isEmpty() || !verifySignature(manifestText, signature)) return false;
-
-    QJsonParseError manifestError;
+    const QJsonObject wrapper = wrapperDoc.object();
+    const QByteArray manifestText = wrapper.value("manifest_text").toString().toUtf8();
+    const QString signature = wrapper.value("manifest").toObject().value("signature").toString();
+    if (manifestText.isEmpty() || signature.isEmpty()) {
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Local signed manifest cache is incomplete. Stage: installed version verification. Version: %1. File: %2.")
+            .arg(version, cachePath);
+        return false;
+    }
+    if (!verifySignature(manifestText, signature)) return false;
+
+    QJsonParseError manifestError;
     const QJsonDocument manifestDoc = QJsonDocument::fromJson(manifestText, &manifestError);
     if (manifestError.error != QJsonParseError::NoError || !manifestDoc.isObject()) {
-        m_error = "signed manifest payload invalid"; return false;
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Signed manifest payload is not valid JSON. Stage: installed version verification. Version: %1. File: %2. JSON error: %3.")
+            .arg(version, cachePath, manifestError.errorString());
+        return false;
     }
-    const QJsonObject manifest = manifestDoc.object();
-    if (manifest.value("app_id").toString() != appId
+    const QJsonObject manifest = manifestDoc.object();
+    if (manifest.value("app_id").toString() != appId
         || manifest.value("channel").toString() != channel
         || manifest.value("version").toString() != version) {
-        m_error = "manifest identity does not match local application"; return false;
+        m_error = QCoreApplication::translate("IntegrityHelper",
+            "Local signed manifest identity does not match this application. Stage: installed version verification. Expected app/channel/version: %1 / %2 / %3. Manifest app/channel/version: %4 / %5 / %6.")
+            .arg(appId, channel, version,
+                 manifest.value("app_id").toString(),
+                 manifest.value("channel").toString(),
+                 manifest.value("version").toString());
+        return false;
     }
-
-    QSet<QString> declaredExecutables;
-    for (const QJsonValue& value : manifest.value("files").toArray()) {
+
+    QSet<QString> declaredExecutables;
+    for (const QJsonValue& value : manifest.value("files").toArray()) {
         const QJsonObject item = value.toObject();
         const QString path = QDir::fromNativeSeparators(item.value("path").toString());
-        if (!safeRelativePath(path)) { m_error = "unsafe manifest path: " + path; return false; }
+        if (!safeRelativePath(path)) {
+            m_error = QCoreApplication::translate("IntegrityHelper",
+                "Signed manifest contains an unsafe file path. Stage: installed version verification. Version: %1. Path: %2.")
+                .arg(version, path);
+            return false;
+        }
         if (runtimeProtectedPath(path)) continue;
         const QString fullPath = QDir(m_installDir).filePath(path);
-        if (!QFile::exists(fullPath)) { m_error = "required file missing: " + path; return false; }
+        if (!QFile::exists(fullPath)) {
+            m_error = QCoreApplication::translate("IntegrityHelper",
+                "A required installed file is missing. Stage: installed version verification. Version: %1. Manifest path: %2. Checked path: %3. The local installation no longer matches the published version.")
+                .arg(version, path, fullPath);
+            return false;
+        }
         const QString expected = item.value("sha256").toString();
         const QString actual = sha256(fullPath);
         if (actual.isEmpty() || actual.compare(expected, Qt::CaseInsensitive) != 0) {
-            m_error = "file hash mismatch: " + path; return false;
+            m_error = QCoreApplication::translate("IntegrityHelper",
+                "Installed file SHA-256 does not match the local signed manifest. Stage: installed version verification. Version: %1. Manifest path: %2. Local path: %3.\nExpected SHA-256: %4\nActual SHA-256: %5\nThis means the installed file is different from the version that was published or installed. If this is a developer test machine, check whether the local Release directory was recompiled or overwritten after publishing.")
+                .arg(version, path, fullPath, expected,
+                     actual.isEmpty() ? QCoreApplication::translate("IntegrityHelper", "<cannot read file>") : actual);
+            return false;
         }
-        const QString suffix = QFileInfo(path).suffix().toCaseFolded();
-        if (suffix == "exe" || suffix == "dll") declaredExecutables.insert(path.toCaseFolded());
-    }
-
+        const QString suffix = QFileInfo(path).suffix().toCaseFolded();
+        if (suffix == "exe" || suffix == "dll") declaredExecutables.insert(path.toCaseFolded());
+    }
+
     QDir root(m_installDir);
     QDirIterator it(m_installDir, QDir::Files, QDirIterator::Subdirectories);
+    // 除了清单中声明的文件，还要拒绝额外出现的 exe/dll。
+    // 这能降低被人偷偷塞插件或可执行文件的风险。
     while (it.hasNext()) {
-        const QString fullPath = it.next();
-        const QString relative = QDir::fromNativeSeparators(root.relativeFilePath(fullPath));
-        const QString folded = relative.toCaseFolded();
-        const QString runtimePrefix = ConfigHelper::instance().runtimeRelativePath().toCaseFolded();
-        const bool runtimeWorkDir = !runtimePrefix.isEmpty()
-            && (folded.startsWith(runtimePrefix + "/update/")
-                || folded.startsWith(runtimePrefix + "/update_temp/"));
-        if (folded.startsWith("update/") || folded.startsWith("update_temp/")
-            || runtimeWorkDir || runtimeProtectedPath(relative)) continue;
+        const QString fullPath = it.next();
+        const QString relative = QDir::fromNativeSeparators(root.relativeFilePath(fullPath));
+        const QString folded = relative.toCaseFolded();
+        const QString runtimePrefix = ConfigHelper::instance().runtimeRelativePath().toCaseFolded();
+        const bool runtimeWorkDir = !runtimePrefix.isEmpty()
+            && (folded.startsWith(runtimePrefix + "/update/")
+                || folded.startsWith(runtimePrefix + "/update_temp/"));
+        if (folded.startsWith("update/") || folded.startsWith("update_temp/")
+            || runtimeWorkDir || runtimeProtectedPath(relative)) continue;
         const QString suffix = QFileInfo(relative).suffix().toCaseFolded();
         if ((suffix == "exe" || suffix == "dll") && !declaredExecutables.contains(folded)) {
-            m_error = "undeclared executable or plugin: " + relative; return false;
+            m_error = QCoreApplication::translate("IntegrityHelper",
+                "An executable or DLL exists locally but is not declared in the signed manifest. Stage: installed version verification. Version: %1. Extra file: %2. Remove unexpected executable/plugin files or publish a new version that declares them.")
+                .arg(version, relative);
+            return false;
         }
-    }
-    return true;
-}
+    }
+    return true;
+}

Common/IntegrityHelper.h

@@ -1,20 +1,20 @@
-#pragma once
-#include <QString>
-
-class IntegrityHelper
-{
-public:
-    explicit IntegrityHelper(const QString& installDir);
-    bool verifyInstalledVersion(const QString& appId, const QString& channel,
-                                const QString& version);
-    QString errorString() const;
-
-private:
-    bool verifySignature(const QByteArray& payload, const QString& signatureBase64);
-    bool safeRelativePath(const QString& path) const;
-    bool runtimeProtectedPath(const QString& path) const;
-    QString sha256(const QString& filePath) const;
-
-    QString m_installDir;
-    QString m_error;
-};
+#pragma once
+#include <QString>
+
+class IntegrityHelper
+{
+public:
+    explicit IntegrityHelper(const QString& installDir);
+    bool verifyInstalledVersion(const QString& appId, const QString& channel,
+                                const QString& version);
+    QString errorString() const;
+
+private:
+    bool verifySignature(const QByteArray& payload, const QString& signatureBase64);
+    bool safeRelativePath(const QString& path) const;
+    bool runtimeProtectedPath(const QString& path) const;
+    QString sha256(const QString& filePath) const;
+
+    QString m_installDir;
+    QString m_error;
+};

Common/LocalStateHelper.cpp

@@ -1,147 +1,163 @@
 #include "LocalStateHelper.h"
-#include <QFile>
-#include <QFileInfo>
-#include <QJsonDocument>
+#include "ConfigHelper.h"
+#include <QCoreApplication>
 #include <QDir>
-
+#include <QFile>
+#include <QJsonDocument>
+
 LocalStateHelper::LocalStateHelper(const QString& baseDir)
     : m_baseDir(baseDir)
-    , m_filePath(baseDir + "/config/local_state.json")
+    , m_filePath(ConfigHelper::instance().localStatePath())
 {
 }
 
 bool LocalStateHelper::loadState(const QString& relativePath)
 {
-    m_filePath = m_baseDir + "/" + relativePath;
+    const QString defaultState = QStringLiteral("config/local_state.json");
+    if (relativePath == defaultState)
+        m_filePath = ConfigHelper::instance().localStatePath();
+    else if (QDir::isAbsolutePath(relativePath))
+        m_filePath = relativePath;
+    else
+        m_filePath = m_baseDir + "/" + relativePath;
     QFile file(m_filePath);
     if (!file.exists())
     {
-        QDir dir(QFileInfo(m_filePath).path());
-        if (!dir.exists() && !dir.mkpath("."))
-        {
-            m_error = QString("Cannot create state directory: %1").arg(dir.path());
-            return false;
-        }
-
         m_state = QJsonObject{
             {"max_policy_seq", 0},
             {"last_success_run_at", QString()},
-            {"last_online_verified_at", QString()},
-            {"last_success_version", QString()}
-        };
-        m_loaded = true;
+            {"last_online_verified_at", QString()},
+            {"last_success_version", QString()}
+        };
+        m_loaded = true;
         if (!saveState())
         {
-            m_error = QString("Cannot write new state file: %1").arg(m_filePath);
+            m_error = QCoreApplication::translate(
+                "LocalStateHelper",
+                "Cannot create local state file: %1. Error: %2.")
+                .arg(m_filePath, m_error);
             return false;
         }
         return true;
-    }
-
+    }
+
     if (!file.open(QIODevice::ReadOnly))
     {
-        m_error = QString("Cannot open state file: %1").arg(m_filePath);
+        m_error = QCoreApplication::translate(
+            "LocalStateHelper",
+            "Cannot open local state file: %1. Error: %2.")
+            .arg(m_filePath, file.errorString());
         return false;
     }
-
-    QByteArray raw = file.readAll();
-    file.close();
-
-    QJsonParseError parseError;
-    QJsonDocument doc = QJsonDocument::fromJson(raw, &parseError);
+
+    QByteArray raw = file.readAll();
+    file.close();
+
+    QJsonParseError parseError;
+    QJsonDocument doc = QJsonDocument::fromJson(raw, &parseError);
     if (parseError.error != QJsonParseError::NoError || !doc.isObject())
     {
-        m_error = QString("Invalid state JSON: %1").arg(parseError.errorString());
+        m_error = QCoreApplication::translate(
+            "LocalStateHelper",
+            "Local state file is not valid JSON. File: %1. JSON error: %2.")
+            .arg(m_filePath, parseError.errorString());
         return false;
     }
-
-    m_state = doc.object();
-    m_loaded = true;
-    return true;
-}
-
+
+    m_state = doc.object();
+    m_loaded = true;
+    return true;
+}
+
 bool LocalStateHelper::saveState() const
 {
     if (!m_loaded)
-        return false;
-
-    QFile file(m_filePath);
-    if (!file.open(QIODevice::WriteOnly | QIODevice::Truncate))
     {
+        m_error = QCoreApplication::translate(
+            "LocalStateHelper",
+            "Local state has not been loaded.");
         return false;
     }
 
     QJsonDocument doc(m_state);
-    file.write(doc.toJson(QJsonDocument::Indented));
-    file.close();
+    QString writeError;
+    if (!ConfigHelper::writeFileWithElevationIfNeeded(m_filePath, doc.toJson(QJsonDocument::Indented), &writeError))
+    {
+        m_error = QCoreApplication::translate(
+            "LocalStateHelper",
+            "Cannot save local state file: %1. Error: %2.")
+            .arg(m_filePath, writeError);
+        return false;
+    }
+    m_error.clear();
     return true;
 }
-
-bool LocalStateHelper::isLoaded() const
-{
-    return m_loaded;
-}
-
-QString LocalStateHelper::errorString() const
-{
-    return m_error;
-}
-
-qint64 LocalStateHelper::maxPolicySeq() const
-{
-    return m_state.value("max_policy_seq").toVariant().toLongLong();
-}
-
-QDateTime LocalStateHelper::lastSuccessRunAt() const
-{
-    return QDateTime::fromString(m_state.value("last_success_run_at").toString(), Qt::ISODate);
-}
-
-QDateTime LocalStateHelper::lastOnlineVerifiedAt() const
-{
-    return QDateTime::fromString(m_state.value("last_online_verified_at").toString(), Qt::ISODate);
-}
-
-QString LocalStateHelper::lastSuccessVersion() const
-{
-    return m_state.value("last_success_version").toString();
-}
-
-bool LocalStateHelper::isPolicySeqRolledBack(qint64 policySeq) const
-{
-    if (!m_loaded)
-        return false;
-    return policySeq < maxPolicySeq();
-}
-
-bool LocalStateHelper::isSystemTimeRewound() const
-{
-    if (!m_loaded)
-        return false;
-    const QDateTime now = QDateTime::currentDateTimeUtc();
-    const QDateTime lastRun = lastSuccessRunAt();
-    const QDateTime lastOnline = lastOnlineVerifiedAt();
-    return (lastRun.isValid() && now < lastRun)
-        || (lastOnline.isValid() && now < lastOnline);
-}
-
-void LocalStateHelper::updateAfterSuccessfulRun(const QString& currentVersion, qint64 policySeq)
-{
-    if (!m_loaded)
-        m_loaded = true;
-
-    m_state["last_success_run_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
-    m_state["last_success_version"] = currentVersion;
-    if (policySeq > maxPolicySeq())
-        m_state["max_policy_seq"] = policySeq;
-}
-
-void LocalStateHelper::updateOnlineVerified(qint64 policySeq)
-{
-    if (!m_loaded)
-        m_loaded = true;
-
-    m_state["last_online_verified_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
-    if (policySeq > maxPolicySeq())
-        m_state["max_policy_seq"] = policySeq;
-}
+
+bool LocalStateHelper::isLoaded() const
+{
+    return m_loaded;
+}
+
+QString LocalStateHelper::errorString() const
+{
+    return m_error;
+}
+
+qint64 LocalStateHelper::maxPolicySeq() const
+{
+    return m_state.value("max_policy_seq").toVariant().toLongLong();
+}
+
+QDateTime LocalStateHelper::lastSuccessRunAt() const
+{
+    return QDateTime::fromString(m_state.value("last_success_run_at").toString(), Qt::ISODate);
+}
+
+QDateTime LocalStateHelper::lastOnlineVerifiedAt() const
+{
+    return QDateTime::fromString(m_state.value("last_online_verified_at").toString(), Qt::ISODate);
+}
+
+QString LocalStateHelper::lastSuccessVersion() const
+{
+    return m_state.value("last_success_version").toString();
+}
+
+bool LocalStateHelper::isPolicySeqRolledBack(qint64 policySeq) const
+{
+    if (!m_loaded)
+        return false;
+    return policySeq < maxPolicySeq();
+}
+
+bool LocalStateHelper::isSystemTimeRewound() const
+{
+    if (!m_loaded)
+        return false;
+    const QDateTime now = QDateTime::currentDateTimeUtc();
+    const QDateTime lastRun = lastSuccessRunAt();
+    const QDateTime lastOnline = lastOnlineVerifiedAt();
+    return (lastRun.isValid() && now < lastRun)
+        || (lastOnline.isValid() && now < lastOnline);
+}
+
+void LocalStateHelper::updateAfterSuccessfulRun(const QString& currentVersion, qint64 policySeq)
+{
+    if (!m_loaded)
+        m_loaded = true;
+
+    m_state["last_success_run_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
+    m_state["last_success_version"] = currentVersion;
+    if (policySeq > maxPolicySeq())
+        m_state["max_policy_seq"] = policySeq;
+}
+
+void LocalStateHelper::updateOnlineVerified(qint64 policySeq)
+{
+    if (!m_loaded)
+        m_loaded = true;
+
+    m_state["last_online_verified_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
+    if (policySeq > maxPolicySeq())
+        m_state["max_policy_seq"] = policySeq;
+}

Common/LocalStateHelper.h

@@ -1,33 +1,33 @@
-#pragma once
-#include <QString>
-#include <QJsonObject>
-#include <QDateTime>
-
-class LocalStateHelper
-{
-public:
-    explicit LocalStateHelper(const QString& baseDir);
-
-    bool loadState(const QString& relativePath = "config/local_state.json");
-    bool saveState() const;
-    bool isLoaded() const;
-    QString errorString() const;
-
-    qint64 maxPolicySeq() const;
-    QDateTime lastSuccessRunAt() const;
-    QDateTime lastOnlineVerifiedAt() const;
-    QString lastSuccessVersion() const;
-
-    bool isPolicySeqRolledBack(qint64 policySeq) const;
-    bool isSystemTimeRewound() const;
-
-    void updateAfterSuccessfulRun(const QString& currentVersion, qint64 policySeq);
-    void updateOnlineVerified(qint64 policySeq);
-
-private:
-    QString m_baseDir;
-    QString m_filePath;
-    QString m_error;
-    QJsonObject m_state;
-    bool m_loaded = false;
-};
+#pragma once
+#include <QString>
+#include <QJsonObject>
+#include <QDateTime>
+
+class LocalStateHelper
+{
+public:
+    explicit LocalStateHelper(const QString& baseDir);
+
+    bool loadState(const QString& relativePath = "config/local_state.json");
+    bool saveState() const;
+    bool isLoaded() const;
+    QString errorString() const;
+
+    qint64 maxPolicySeq() const;
+    QDateTime lastSuccessRunAt() const;
+    QDateTime lastOnlineVerifiedAt() const;
+    QString lastSuccessVersion() const;
+
+    bool isPolicySeqRolledBack(qint64 policySeq) const;
+    bool isSystemTimeRewound() const;
+
+    void updateAfterSuccessfulRun(const QString& currentVersion, qint64 policySeq);
+    void updateOnlineVerified(qint64 policySeq);
+
+private:
+    QString m_baseDir;
+    QString m_filePath;
+    mutable QString m_error;
+    QJsonObject m_state;
+    bool m_loaded = false;
+};

Common/PolicyHelper.cpp

@@ -1,116 +1,189 @@
 #include "PolicyHelper.h"
+#include "ConfigHelper.h"
 #include <QApplication>
+#include <QCoreApplication>
 #include <QDateTime>
+#include <QDir>
 #include <QFile>
 #include <QJsonArray>
 #include <QJsonDocument>
-#include <QSaveFile>
 #include <algorithm>
-#ifdef HAVE_OPENSSL
-#include <openssl/evp.h>
-#include <openssl/pem.h>
-#endif
-
+#ifdef HAVE_OPENSSL
+#include <openssl/evp.h>
+#include <openssl/pem.h>
+#endif
+
 PolicyHelper::PolicyHelper(const QString& baseDir) : m_baseDir(baseDir) {}
 
+static QString resolvePolicyPath(const QString& baseDir, const QString& relativePath, bool forWrite)
+{
+    const QString defaultPolicy = QStringLiteral("config/version_policy.dat");
+    if (relativePath == defaultPolicy) {
+        const QString runtimePolicy = ConfigHelper::instance().policyPath();
+        if (forWrite || QFile::exists(runtimePolicy))
+            return runtimePolicy;
+    }
+    if (QDir::isAbsolutePath(relativePath))
+        return relativePath;
+    return baseDir + "/" + relativePath;
+}
+
 bool PolicyHelper::loadPolicy(const QString& relativePath)
 {
-    QFile file(m_baseDir + "/" + relativePath);
-    if (!file.open(QIODevice::ReadOnly)) { m_error = "Cannot open policy file"; return false; }
+    const QString path = resolvePolicyPath(m_baseDir, relativePath, false);
+    QFile file(path);
+    if (!file.open(QIODevice::ReadOnly)) {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Cannot open signed version policy file: %1. Error: %2.")
+            .arg(path, file.errorString());
+        return false;
+    }
     QJsonParseError error;
     const QJsonDocument doc = QJsonDocument::fromJson(file.readAll(), &error);
     if (error.error != QJsonParseError::NoError || !doc.isObject()) {
-        m_error = "Invalid policy JSON: " + error.errorString(); return false;
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Signed version policy is not valid JSON. File: %1. JSON error: %2.")
+            .arg(path, error.errorString());
+        return false;
     }
     return loadPolicyObject(doc.object());
 }
-
-bool PolicyHelper::loadPolicyObject(const QJsonObject& policy, const QString& signedText)
-{
-    m_policy = policy; m_signedText = signedText; m_loaded = true; m_error.clear();
-    return isValid();
-}
-
+
+bool PolicyHelper::loadPolicyObject(const QJsonObject& policy, const QString& signedText)
+{
+    m_policy = policy; m_signedText = signedText; m_loaded = true; m_error.clear();
+    return isValid();
+}
+
 bool PolicyHelper::savePolicy(const QString& relativePath) const
 {
-    QSaveFile file(m_baseDir + "/" + relativePath);
-    if (!file.open(QIODevice::WriteOnly)) return false;
     const QByteArray bytes = QJsonDocument(m_policy).toJson(QJsonDocument::Indented);
-    return file.write(bytes) == bytes.size() && file.commit();
+    QString writeError;
+    const QString path = resolvePolicyPath(m_baseDir, relativePath, true);
+    if (!ConfigHelper::writeFileWithElevationIfNeeded(path, bytes, &writeError)) {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Cannot save signed version policy file: %1. Error: %2.")
+            .arg(path, writeError);
+        return false;
+    }
+    m_error.clear();
+    return true;
 }
-
-QByteArray PolicyHelper::canonicalPolicyBytes(const QJsonObject& policy) const
-{
-    QJsonObject copy = policy; copy.remove("signature");
-    auto sortObject = [&](auto&& self, const QJsonObject& obj) -> QJsonObject {
-        QStringList keys = obj.keys(); std::sort(keys.begin(), keys.end());
-        QJsonObject sorted;
-        for (const QString& key : keys) {
-            QJsonValue value = obj.value(key);
-            if (value.isObject()) value = self(self, value.toObject());
-            else if (value.isArray()) {
-                QJsonArray array;
-                for (QJsonValue item : value.toArray()) {
-                    if (item.isObject()) item = self(self, item.toObject());
-                    array.append(item);
-                }
-                value = array;
-            }
-            sorted.insert(key, value);
-        }
-        return sorted;
-    };
-    return QJsonDocument(sortObject(sortObject, copy)).toJson(QJsonDocument::Compact);
-}
-
-bool PolicyHelper::verifySignature(const QByteArray& payload, const QString& signatureBase64) const
-{
+
+QByteArray PolicyHelper::canonicalPolicyBytes(const QJsonObject& policy) const
+{
+    QJsonObject copy = policy; copy.remove("signature");
+    auto sortObject = [&](auto&& self, const QJsonObject& obj) -> QJsonObject {
+        QStringList keys = obj.keys(); std::sort(keys.begin(), keys.end());
+        QJsonObject sorted;
+        for (const QString& key : keys) {
+            QJsonValue value = obj.value(key);
+            if (value.isObject()) value = self(self, value.toObject());
+            else if (value.isArray()) {
+                QJsonArray array;
+                for (QJsonValue item : value.toArray()) {
+                    if (item.isObject()) item = self(self, item.toObject());
+                    array.append(item);
+                }
+                value = array;
+            }
+            sorted.insert(key, value);
+        }
+        return sorted;
+    };
+    return QJsonDocument(sortObject(sortObject, copy)).toJson(QJsonDocument::Compact);
+}
+
+bool PolicyHelper::verifySignature(const QByteArray& payload, const QString& signatureBase64) const
+{
 #ifndef HAVE_OPENSSL
-    Q_UNUSED(payload); Q_UNUSED(signatureBase64); m_error = "OpenSSL unavailable"; return false;
+    Q_UNUSED(payload);
+    Q_UNUSED(signatureBase64);
+    m_error = QCoreApplication::translate(
+        "PolicyHelper",
+        "OpenSSL is unavailable, so the signed version policy cannot be verified.");
+    return false;
 #else
     QString keyPath = m_baseDir + "/config/manifest_public_key.pem";
     QFile keyFile(keyPath);
-    if (!keyFile.open(QIODevice::ReadOnly)) { m_error = "Cannot open policy public key"; return false; }
-    const QByteArray keyData = keyFile.readAll();
-    BIO* bio = BIO_new_mem_buf(keyData.constData(), keyData.size());
-    EVP_PKEY* key = bio ? PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr) : nullptr;
-    if (bio) BIO_free(bio);
-    if (!key) { m_error = "Invalid policy public key"; return false; }
-    EVP_MD_CTX* ctx = EVP_MD_CTX_new();
-    const QByteArray signature = QByteArray::fromBase64(signatureBase64.toUtf8());
-    bool ok = ctx && EVP_DigestVerifyInit(ctx, nullptr, EVP_sha256(), nullptr, key) == 1
-        && EVP_DigestVerifyUpdate(ctx, payload.constData(), payload.size()) == 1
-        && EVP_DigestVerifyFinal(ctx, reinterpret_cast<const unsigned char*>(signature.constData()), signature.size()) == 1;
-    if (ctx) EVP_MD_CTX_free(ctx); EVP_PKEY_free(key);
-    if (!ok) m_error = "Invalid RSA policy signature";
+    if (!keyFile.open(QIODevice::ReadOnly)) {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Cannot open version policy public key: %1. Error: %2.")
+            .arg(keyPath, keyFile.errorString());
+        return false;
+    }
+    const QByteArray keyData = keyFile.readAll();
+    BIO* bio = BIO_new_mem_buf(keyData.constData(), keyData.size());
+    EVP_PKEY* key = bio ? PEM_read_bio_PUBKEY(bio, nullptr, nullptr, nullptr) : nullptr;
+    if (bio) BIO_free(bio);
+    if (!key) {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Version policy public key is invalid: %1.")
+            .arg(keyPath);
+        return false;
+    }
+    EVP_MD_CTX* ctx = EVP_MD_CTX_new();
+    const QByteArray signature = QByteArray::fromBase64(signatureBase64.toUtf8());
+    bool ok = ctx && EVP_DigestVerifyInit(ctx, nullptr, EVP_sha256(), nullptr, key) == 1
+        && EVP_DigestVerifyUpdate(ctx, payload.constData(), payload.size()) == 1
+        && EVP_DigestVerifyFinal(ctx, reinterpret_cast<const unsigned char*>(signature.constData()), signature.size()) == 1;
+    if (ctx) EVP_MD_CTX_free(ctx); EVP_PKEY_free(key);
+    if (!ok) {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Version policy RSA signature is invalid. The policy file may have been changed, or the public key does not match the server private key.");
+    }
     return ok;
 #endif
 }
-
-bool PolicyHelper::isValid() const
-{
-    if (!m_loaded) return false;
+
+bool PolicyHelper::isValid() const
+{
+    if (!m_loaded) {
+        m_error = QCoreApplication::translate("PolicyHelper", "Version policy has not been loaded.");
+        return false;
+    }
     const QStringList required{"app_id","channel","current_version","policy_seq","allow_run",
         "force_update","allow_rollback","offline_allowed","valid_until","signature_alg","key_id","signature"};
-    for (const QString& key : required) if (!m_policy.contains(key)) { m_error = "Missing policy field: " + key; return false; }
-    if (m_policy.value("signature_alg").toString() != "RSA-2048-SHA256") return false;
-    const QByteArray payload = m_signedText.isEmpty() ? canonicalPolicyBytes(m_policy) : m_signedText.toUtf8();
-    return verifySignature(payload, m_policy.value("signature").toString());
-}
-QString PolicyHelper::errorString() const { return m_error; }
-bool PolicyHelper::isVersionAllowed(const QString& version) const {
-    if (!isValid()) return false;
-    for (const QJsonValue& v : m_policy.value("disabled_versions").toArray()) if (v.toString() == version) return false;
-    return true;
-}
-bool PolicyHelper::allowRun() const { return isValid() && m_policy.value("allow_run").toBool(); }
+    for (const QString& key : required) {
+        if (!m_policy.contains(key)) {
+            m_error = QCoreApplication::translate(
+                "PolicyHelper",
+                "Version policy is missing required field: %1.")
+                .arg(key);
+            return false;
+        }
+    }
+    if (m_policy.value("signature_alg").toString() != "RSA-2048-SHA256") {
+        m_error = QCoreApplication::translate(
+            "PolicyHelper",
+            "Version policy signature algorithm is unsupported: %1.")
+            .arg(m_policy.value("signature_alg").toString());
+        return false;
+    }
+    const QByteArray payload = m_signedText.isEmpty() ? canonicalPolicyBytes(m_policy) : m_signedText.toUtf8();
+    return verifySignature(payload, m_policy.value("signature").toString());
+}
+QString PolicyHelper::errorString() const { return m_error; }
+bool PolicyHelper::isVersionAllowed(const QString& version) const {
+    if (!isValid()) return false;
+    for (const QJsonValue& v : m_policy.value("disabled_versions").toArray()) if (v.toString() == version) return false;
+    return true;
+}
+bool PolicyHelper::allowRun() const { return isValid() && m_policy.value("allow_run").toBool(); }
 bool PolicyHelper::forceUpdate() const { return isValid() && m_policy.value("force_update").toBool(); }
 bool PolicyHelper::allowRollback() const { return isValid() && m_policy.value("allow_rollback").toBool(); }
 bool PolicyHelper::isOfflineAllowed() const { return isValid() && m_policy.value("offline_allowed").toBool(); }
+bool PolicyHelper::gitTagsEnabled() const { return isValid() && m_policy.value("git_tags_enabled").toBool(); }
 bool PolicyHelper::isExpired() const {
-    if (!isValid()) return true;
-    const QDateTime expiry = QDateTime::fromString(m_policy.value("valid_until").toString(), Qt::ISODate);
-    return !expiry.isValid() || QDateTime::currentDateTimeUtc() > expiry;
-}
-qint64 PolicyHelper::policySeq() const { return isValid() ? m_policy.value("policy_seq").toVariant().toLongLong() : 0; }
-QString PolicyHelper::message() const { return m_policy.value("message").toString(); }
+    if (!isValid()) return true;
+    const QDateTime expiry = QDateTime::fromString(m_policy.value("valid_until").toString(), Qt::ISODate);
+    return !expiry.isValid() || QDateTime::currentDateTimeUtc() > expiry;
+}
+qint64 PolicyHelper::policySeq() const { return isValid() ? m_policy.value("policy_seq").toVariant().toLongLong() : 0; }
+QString PolicyHelper::message() const { return m_policy.value("message").toString(); }

Common/PolicyHelper.h

@@ -1,33 +1,34 @@
-#pragma once
-#include <QString>
-#include <QJsonObject>
-
-class PolicyHelper
-{
-public:
-    explicit PolicyHelper(const QString& baseDir);
-
-    bool loadPolicy(const QString& relativePath = "config/version_policy.dat");
-    bool loadPolicyObject(const QJsonObject& policy, const QString& signedText = QString());
-    bool savePolicy(const QString& relativePath = "config/version_policy.dat") const;
-    bool isValid() const;
-    QString errorString() const;
-    bool isVersionAllowed(const QString& currentVersion) const;
-    bool allowRun() const;
-    bool forceUpdate() const;
+#pragma once
+#include <QString>
+#include <QJsonObject>
+
+class PolicyHelper
+{
+public:
+    explicit PolicyHelper(const QString& baseDir);
+
+    bool loadPolicy(const QString& relativePath = "config/version_policy.dat");
+    bool loadPolicyObject(const QJsonObject& policy, const QString& signedText = QString());
+    bool savePolicy(const QString& relativePath = "config/version_policy.dat") const;
+    bool isValid() const;
+    QString errorString() const;
+    bool isVersionAllowed(const QString& currentVersion) const;
+    bool allowRun() const;
+    bool forceUpdate() const;
     bool allowRollback() const;
     bool isOfflineAllowed() const;
+    bool gitTagsEnabled() const;
     bool isExpired() const;
-    qint64 policySeq() const;
-    QString message() const;
-
-private:
-    QByteArray canonicalPolicyBytes(const QJsonObject& obj) const;
-    bool verifySignature(const QByteArray& payload, const QString& signatureBase64) const;
-
-    QString m_baseDir;
-    QJsonObject m_policy;
-    QString m_signedText;
-    mutable QString m_error;
-    bool m_loaded = false;
-};
+    qint64 policySeq() const;
+    QString message() const;
+
+private:
+    QByteArray canonicalPolicyBytes(const QJsonObject& obj) const;
+    bool verifySignature(const QByteArray& payload, const QString& signatureBase64) const;
+
+    QString m_baseDir;
+    QJsonObject m_policy;
+    QString m_signedText;
+    mutable QString m_error;
+    bool m_loaded = false;
+};

Common/TicketHelper.cpp

@@ -1,90 +1,180 @@
-#include "TicketHelper.h"
-#include <QCoreApplication>
-#include <QDateTime>
-#include <QDir>
-#include <QFile>
-#include <QJsonDocument>
-#include <QJsonObject>
+#include "TicketHelper.h"
+#include <QCoreApplication>
+#include <QDateTime>
+#include <QDir>
+#include <QFile>
+#include <QJsonDocument>
+#include <QJsonObject>
 #include <QMessageAuthenticationCode>
 #include <QSaveFile>
 #include <QStandardPaths>
+#include <QStringList>
 #include <QUuid>
-
+
 static QByteArray ticketMac(const QJsonObject& payload, const QString& secret)
 {
-    return QMessageAuthenticationCode::hash(
-        QJsonDocument(payload).toJson(QJsonDocument::Compact), secret.toUtf8(), QCryptographicHash::Sha256).toHex();
-}
-
+    return QMessageAuthenticationCode::hash(
+        QJsonDocument(payload).toJson(QJsonDocument::Compact), secret.toUtf8(), QCryptographicHash::Sha256).toHex();
+}
+
 bool TicketHelper::createTicket(const QString& appId, const QString& deviceId,
                                 const QString& version, const QString& secret,
                                 QString* ticketPath, QString* errorMessage)
 {
-    if (appId.isEmpty() || version.isEmpty() || secret.isEmpty()) {
-        if (errorMessage) *errorMessage = "ticket identity or secret is empty";
+    // Launcher 启动业务主程序前生成一次性 ticket。
+    // ticket 只保存在临时目录、有效期 60 秒，并用 launch_token 做 HMAC，防止用户绕过 Launcher 直接启动主程序。
+    if (appId.isEmpty() || deviceId.isEmpty() || version.isEmpty() || secret.isEmpty()) {
+        if (errorMessage) {
+            QStringList missing;
+            if (appId.isEmpty()) missing.append(QStringLiteral("app_id"));
+            if (deviceId.isEmpty()) missing.append(QStringLiteral("device_id"));
+            if (version.isEmpty()) missing.append(QStringLiteral("current_version"));
+            if (secret.isEmpty()) missing.append(QStringLiteral("launch_token"));
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Cannot create launch ticket because required fields are empty: %1. Check app_config.json, registry-imported configuration and device authorization.")
+                .arg(missing.join(QStringLiteral(", ")));
+        }
         return false;
     }
-    const QDateTime now = QDateTime::currentDateTimeUtc();
-    QJsonObject payload{
-        {"app_id", appId}, {"device_id", deviceId}, {"version", version},
-        {"nonce", QUuid::createUuid().toString(QUuid::WithoutBraces)},
-        {"issued_at", now.toString(Qt::ISODate)},
-        {"expires_at", now.addSecs(60).toString(Qt::ISODate)},
-        {"signature_alg", "HMAC-SHA256"}
-    };
-    QJsonObject wrapper{{"payload", payload}, {"signature", QString::fromLatin1(ticketMac(payload, secret))}};
-    const QString dirPath = QDir(QStandardPaths::writableLocation(QStandardPaths::TempLocation)).filePath("marsco_tickets");
-    if (!QDir().mkpath(dirPath)) { if (errorMessage) *errorMessage = "cannot create ticket directory"; return false; }
-    const QString path = QDir(dirPath).filePath("ticket_" + QUuid::createUuid().toString(QUuid::WithoutBraces) + ".json");
+    const QDateTime now = QDateTime::currentDateTimeUtc();
+    QJsonObject payload{
+        {"app_id", appId}, {"device_id", deviceId}, {"version", version},
+        {"nonce", QUuid::createUuid().toString(QUuid::WithoutBraces)},
+        {"issued_at", now.toString(Qt::ISODate)},
+        {"expires_at", now.addSecs(60).toString(Qt::ISODate)},
+        {"signature_alg", "HMAC-SHA256"}
+    };
+    QJsonObject wrapper{{"payload", payload}, {"signature", QString::fromLatin1(ticketMac(payload, secret))}};
+    const QString dirPath = QDir(QStandardPaths::writableLocation(QStandardPaths::TempLocation)).filePath("marsco_tickets");
+    if (!QDir().mkpath(dirPath)) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Cannot create launch ticket directory: %1.")
+                .arg(dirPath);
+        }
+        return false;
+    }
+    const QString path = QDir(dirPath).filePath("ticket_" + QUuid::createUuid().toString(QUuid::WithoutBraces) + ".json");
     QSaveFile file(path);
     const QByteArray bytes = QJsonDocument(wrapper).toJson(QJsonDocument::Compact);
     if (!file.open(QIODevice::WriteOnly) || file.write(bytes) != bytes.size() || !file.commit()) {
-        if (errorMessage) *errorMessage = "cannot save ticket";
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Cannot save launch ticket file: %1. Error: %2.")
+                .arg(path, file.errorString());
+        }
         return false;
     }
-    QFile::setPermissions(path, QFileDevice::ReadOwner | QFileDevice::WriteOwner);
-    if (ticketPath) *ticketPath = path;
-    return true;
-}
-
+    QFile::setPermissions(path, QFileDevice::ReadOwner | QFileDevice::WriteOwner);
+    if (ticketPath) *ticketPath = path;
+    return true;
+}
+
 bool TicketHelper::consumeAndVerify(const QString& ticketPath, const QString& expectedAppId,
                                     const QString& expectedDeviceId, const QString& expectedVersion,
                                     const QString& secret, QString* errorMessage)
 {
+    // 主程序启动后第一时间把 ticket 改名成 .consuming，再读取并删除。
+    // 这样同一张 ticket 即使校验失败也不能被重复使用，避免重放启动。
     const QString consumingPath = ticketPath + ".consuming."
         + QString::number(QCoreApplication::applicationPid());
     if (!QFile::rename(ticketPath, consumingPath)) {
-        if (errorMessage) *errorMessage = "ticket missing or already consumed";
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket is missing or has already been consumed. Ticket file: %1. Please start the application from Launcher.")
+                .arg(ticketPath);
+        }
         return false;
     }
     QFile file(consumingPath);
     if (!file.open(QIODevice::ReadOnly)) {
         QFile::remove(consumingPath);
-        if (errorMessage) *errorMessage = "cannot read claimed ticket";
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Cannot read claimed launch ticket: %1. Error: %2.")
+                .arg(consumingPath, file.errorString());
+        }
         return false;
     }
-    const QByteArray raw = file.readAll(); file.close();
-    QFile::remove(consumingPath); // 一次性消费；无论成功失败都不能重放。
-    QJsonParseError parseError;
+    const QByteArray raw = file.readAll(); file.close();
+    QFile::remove(consumingPath); // Consume once; it must not be replayed regardless of success or failure.
+    QJsonParseError parseError;
     const QJsonDocument doc = QJsonDocument::fromJson(raw, &parseError);
     if (parseError.error != QJsonParseError::NoError || !doc.isObject()) {
-        if (errorMessage) *errorMessage = "invalid ticket JSON"; return false;
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket is not valid JSON. JSON error: %1.")
+                .arg(parseError.errorString());
+        }
+        return false;
     }
-    const QJsonObject wrapper = doc.object();
-    const QJsonObject payload = wrapper.value("payload").toObject();
-    const QByteArray actual = wrapper.value("signature").toString().toLatin1();
-    const QByteArray expected = ticketMac(payload, secret);
-    const QDateTime issued = QDateTime::fromString(payload.value("issued_at").toString(), Qt::ISODate);
-    const QDateTime expires = QDateTime::fromString(payload.value("expires_at").toString(), Qt::ISODate);
-    const QDateTime now = QDateTime::currentDateTimeUtc();
-    const bool identityOk = payload.value("app_id").toString() == expectedAppId
-        && payload.value("device_id").toString() == expectedDeviceId
-        && payload.value("version").toString() == expectedVersion;
+    const QJsonObject wrapper = doc.object();
+    const QJsonObject payload = wrapper.value("payload").toObject();
+    const QByteArray actual = wrapper.value("signature").toString().toLatin1();
+    const QByteArray expected = ticketMac(payload, secret);
+    const QDateTime issued = QDateTime::fromString(payload.value("issued_at").toString(), Qt::ISODate);
+    const QDateTime expires = QDateTime::fromString(payload.value("expires_at").toString(), Qt::ISODate);
+    const QDateTime now = QDateTime::currentDateTimeUtc();
     const bool timeOk = issued.isValid() && expires.isValid() && issued <= now.addSecs(5)
         && expires >= now && issued.secsTo(expires) <= 65;
-    if (actual.isEmpty() || actual != expected || !identityOk || !timeOk
-        || payload.value("nonce").toString().isEmpty()) {
-        if (errorMessage) *errorMessage = "ticket signature, identity, time or nonce invalid";
+    if (actual.isEmpty() || actual != expected) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket signature is invalid. The launch_token used by Launcher and the main application is inconsistent, or the ticket content was changed.");
+        }
+        return false;
+    }
+    if (payload.value("app_id").toString() != expectedAppId) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket app_id does not match. Ticket app_id: %1. Expected app_id: %2.")
+                .arg(payload.value("app_id").toString(), expectedAppId);
+        }
+        return false;
+    }
+    if (payload.value("device_id").toString() != expectedDeviceId) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket device_id does not match. Ticket device_id: %1. Expected device_id: %2. Reauthorize the device from Launcher if the configuration was regenerated.")
+                .arg(payload.value("device_id").toString(), expectedDeviceId);
+        }
+        return false;
+    }
+    if (payload.value("version").toString() != expectedVersion) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket version does not match. Ticket version: %1. Expected version: %2.")
+                .arg(payload.value("version").toString(), expectedVersion);
+        }
+        return false;
+    }
+    if (!timeOk) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket time is invalid or expired. Issued at: %1. Expires at: %2. Current UTC time: %3.")
+                .arg(payload.value("issued_at").toString(),
+                     payload.value("expires_at").toString(),
+                     now.toString(Qt::ISODate));
+        }
+        return false;
+    }
+    if (payload.value("nonce").toString().isEmpty()) {
+        if (errorMessage) {
+            *errorMessage = QCoreApplication::translate(
+                "TicketHelper",
+                "Launch ticket nonce is missing. The ticket is incomplete.");
+        }
         return false;
     }
     return true;

Common/TicketHelper.h

@@ -1,13 +1,13 @@
-#pragma once
-#include <QString>
-
-class TicketHelper
-{
-public:
-    static bool createTicket(const QString& appId, const QString& deviceId,
-                             const QString& version, const QString& secret,
-                             QString* ticketPath, QString* errorMessage = nullptr);
-    static bool consumeAndVerify(const QString& ticketPath, const QString& expectedAppId,
-                                 const QString& expectedDeviceId, const QString& expectedVersion,
-                                 const QString& secret, QString* errorMessage = nullptr);
-};
+#pragma once
+#include <QString>
+
+class TicketHelper
+{
+public:
+    static bool createTicket(const QString& appId, const QString& deviceId,
+                             const QString& version, const QString& secret,
+                             QString* ticketPath, QString* errorMessage = nullptr);
+    static bool consumeAndVerify(const QString& ticketPath, const QString& expectedAppId,
+                                 const QString& expectedDeviceId, const QString& expectedVersion,
+                                 const QString& secret, QString* errorMessage = nullptr);
+};

Docs/00-先读我-客户端文档入口.txt

@@ -0,0 +1,81 @@
+客户端文档入口
+==============
+
+你第一次打开 update-client/Docs 时，先看这一份。这里告诉你每份文档是干什么的，以及不同角色应该从哪里开始。
+
+文档阅读顺序
+============
+
+1. 01-客户端接入打包部署指南.md
+   适合 SDK 接入方、测试人员和交付人员。按“生成 SDK -> 放进业务软件 -> 生成配置 -> 联调 -> 打最终包”的顺序写。
+
+2. 02-编译环境和第三方依赖说明.md
+   适合需要编译 Launcher、Updater、Bootstrap 的人。说明 Windows/Linux 下 Qt、OpenSSL、thirdparty/ 和 CMake 怎么准备。
+
+3. ../i18n/ReadMe.txt
+   适合维护界面文案的人。说明新增 tr() 后怎么更新 .ts、生成 .qm，并把翻译文件打进 qrc。
+
+常用任务入口
+============
+
+如果你只是拿到 SDK 接入业务软件：
+
+```text
+读 01-客户端接入打包部署指南.md 的“三、你：把 SDK 放进业务软件目录”和“四、你：生成并填写 app_config.json”。
+```
+
+如果你要重新打 Windows SDK 包：
+
+```powershell
+cd update-client
+.\scripts\package-sdk.ps1 -SourceDir .\out\bin\Release -OutputDir .\dist\UpdateClientSDK -ZipFile .\dist\UpdateClientSDK.zip -SdkVersion 0.1.0
+```
+
+如果你要重新打 Linux SDK 包：
+
+```bash
+cd update-client
+cmake --preset linux-x64-release
+cmake --build --preset linux-x64-release
+bash ./scripts/package-sdk.sh --source-dir ./out/linux/bin --output-dir ./dist/UpdateClientSDK-linux --archive ./dist/UpdateClientSDK-linux.tar.gz --sdk-version 0.1.0
+```
+
+客户端配置速记
+==============
+
+config/app_config.json 是部署配置源文件。Launcher / Updater / MainApp 启动时会把它同步到当前用户的 QSettings 配置区；Windows 下对应注册表，Linux 下对应用户配置文件。后续运行配置优先从 QSettings 读取。
+config/server_config.json 是编译期服务端地址配置源文件。它通过 config/server_config.qrc 编进 Launcher / Updater / MainApp，不写入 app_config.json，也不写入注册表。修改 api_base_url 后必须重新编译客户端程序才会生效。
+如果 config/app_config.json 内容被修改，下一次启动时会按解析后的 JSON 内容 SHA256 判断变化并重新导入注册表。
+非空 app_config.json 成功导入注册表后会自动清空为 {}，文件保留不删除，方便下次直接粘贴管理后台生成的新配置。
+Windows 注册表位置：HKEY_CURRENT_USER\Software\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\config。
+Linux 配置位置由 Qt QSettings 决定，通常在当前用户 home 目录的 .config/Marsco/UpdateClientSDK.conf 一类路径下。
+Windows 运行态数据目录类似：%LOCALAPPDATA%\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\。
+如果检测到 app_config.json 发生变化，SDK 会删除当前用户数据目录里的 client_identity.dat、version_policy.dat 和 local_state.json，避免继续使用旧授权身份、旧策略或旧防回滚状态；这些运行态文件不再默认写入安装目录。
+正常启动成功后不要删除这些状态文件，它们用于本地身份、离线策略和安全状态。
+首次运行时如果该文件不存在且发现旧 client.ini，会自动迁移。
+
+接入新软件时通常需要修改：
+
+1. app_id、app_name、channel、current_version。
+2. client_token、license_key、launch_token。
+3. config/server_config.json 里的 api_base_url。
+4. main_executable：团队业务主程序文件名。
+5. launcher_executable、updater_executable、bootstrap_executable。
+6. health_check_timeout_ms：升级后等待业务程序健康确认的毫秒数，最小 1000。
+
+Windows 完整格式参考 update-client/config/app_config.example.json；Linux 完整格式参考 update-client/config/app_config.linux.example.json。
+运行时生成的 client_identity.dat、local_state.json 等文件不得打入通用 SDK 模板。app_config.json 可以作为部署模板，但不要把某台机器运行后产生的临时状态混进去。
+
+Windows 发布打包：
+
+1. 使用 Release 配置编译全部客户端程序。
+2. 先完成当前版本在线校验。签名 Manifest 缓存现在默认保存在当前用户数据目录：
+   Windows：%LOCALAPPDATA%\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\update\manifest_cache
+   Linux：$XDG_DATA_HOME/Marsco/UpdateClientSDK/installations/<安装目录SHA256>/update/manifest_cache，未设置 XDG_DATA_HOME 时通常是 ~/.local/share。
+   打包脚本会优先从用户数据目录读取，也兼容旧版 Release 目录里的 update/manifest_cache。
+3. 准备一份实际 app_config.json，确认其中包含正确的 License Key、当前版本和业务程序名；确认客户端程序已用正确的 config/server_config.json 编译。
+4. 在 PowerShell 执行：
+   powershell -ExecutionPolicy Bypass -File .\scripts\package-client.ps1 -ConfigFile .\config\app_config.json
+5. 输出位于 dist/UpdateClient 和 dist/UpdateClient.zip。
+
+脚本会拒绝 Debug DLL、PDB、嵌套重复主程序和缺少签名 Manifest 的发布源目录。

Docs/01-客户端接入打包部署指南.md

@@ -0,0 +1,432 @@
+# UpdateClientSDK 客户端接入、打包和部署指南
+
+本文按“维护者打包 SDK -> 你接入业务软件 -> 联调测试 -> 生成最终客户端包”的顺序说明。你拿到这份文档后，按章节一步一步做即可。
+
+## 先看这里：你要做哪件事
+
+| 你的目标 | 直接看哪一节 |
+| --- | --- |
+| 重新生成给别人用的 SDK 包 | 二、维护者：生成 SDK 包 |
+| 把 SDK 放到 SimCAE 或其他业务软件目录 | 三、你：把 SDK 放进业务软件目录 |
+| 从后台生成 `app_config.json` 和 qrc 服务端配置 | 四、你：生成并填写客户端配置 |
+| 给业务主程序接入启动保护代码 | 五、你：业务主程序接入要求 |
+| 验证升级、回滚、健康检查 | 六、你：联调测试 |
+| 生成最终交付给用户的客户端包 | 七、维护者：生成最终客户端包 |
+
+## 一、这个 SDK 是什么
+
+UpdateClientSDK 是“独立更新器 SDK / 升级运行时 SDK”。它不是传统的 `include + lib` 形态，而是把自动升级能力做成一组独立程序，让业务软件通过这些程序完成检查更新、下载、安装、回滚和启动保护。
+
+SDK 核心程序：
+
+- `Launcher.exe` / `Launcher`：用户入口。检查版本、验证授权和策略，决定直接启动业务主程序或进入升级流程。
+- `Updater.exe` / `Updater`：下载、校验、备份、安装、健康确认、提交或回滚。
+- `Bootstrap.exe` / `Bootstrap`：处理运行中可能被占用的 EXE/DLL 或 Linux 可执行文件替换。
+- `config/app_config.json`：部署配置源文件。启动时会同步到当前用户的 QSettings 配置区；Windows 下对应注册表，Linux 下对应用户配置文件。
+- `config/server_config.json`：编译期服务端地址配置源文件，通过 `config/server_config.qrc` 编进 Launcher / Updater / MainApp，不写入 `app_config.json` 或注册表。
+- `config/manifest_public_key.pem`：Manifest 签名公钥，用来验证服务端发布包没有被篡改。
+
+## 二、维护者：生成 SDK 包
+
+这一节是 SDK 维护者操作。接入方通常只需要拿到 `UpdateClientSDK.zip`。
+
+打包前确认：
+
+1. 已在 Windows 上用 Release 配置编译完成，输出目录里有 `Launcher.exe`、`Updater.exe`、`Bootstrap.exe`。
+2. `config/manifest_public_key.pem` 和服务端使用的私钥是一对。
+3. `update-client/Docs` 里的 Markdown 文档会随 SDK 一起打包，是默认接入说明来源。
+4. Word 接入说明是可选增强。如果本地有文件名包含 `SDK` 的 `.docx`，打包脚本会额外复制到 SDK 根目录；如果没有，也不会影响 SDK 打包。
+5. 如果业务软件本身已经带 Qt DLL，通常不要把 SDK 的 Qt 运行库打进去，避免 Qt 版本混用。
+
+在 Windows PowerShell 中执行：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+
+.\scripts\package-sdk.ps1 `
+  -SourceDir .\out\bin\Release `
+  -OutputDir .\dist\UpdateClientSDK `
+  -ZipFile .\dist\UpdateClientSDK.zip `
+  -SdkVersion 0.1.0
+```
+
+生成结果：
+
+```text
+dist/
+  UpdateClientSDK/
+    sdk_manifest.json
+    Docs/
+      00-先读我-客户端文档入口.txt
+      01-客户端接入打包部署指南.md
+      02-编译环境和第三方依赖说明.md
+    bin/
+      Launcher.exe
+      Updater.exe
+      Bootstrap.exe
+      ...
+    config/
+      app_config.json
+      manifest_public_key.pem
+    scripts/
+      install-sdk.ps1
+      package-client.ps1
+      package-sdk.ps1
+    SimCAE自动升级SDK接入说明_v0.1.docx   # 可选：只有本地存在 Word 说明时才会出现
+  UpdateClientSDK.zip
+```
+
+把 `dist/UpdateClientSDK.zip` 发给接入方即可。
+
+可选参数：
+
+- `-IncludeDemoMainApp`：把仓库里的 Demo 主程序 `MainApp.exe` 也打进 SDK，方便演示。
+- `-IncludeQtRuntime`：把 Qt 运行库也打进 SDK。只有业务软件本身不带 Qt 时才建议使用。
+
+Linux SDK 打包方式：
+
+```bash
+cd /home/laluo/project/update-client
+
+cmake --preset linux-x64-release
+cmake --build --preset linux-x64-release
+
+bash ./scripts/package-sdk.sh \
+  --source-dir ./out/linux/bin \
+  --output-dir ./dist/UpdateClientSDK-linux \
+  --archive ./dist/UpdateClientSDK-linux.tar.gz \
+  --sdk-version 0.1.0
+```
+
+Linux SDK 包里核心程序名不带 `.exe`：
+
+```text
+dist/
+  UpdateClientSDK-linux/
+    sdk_manifest.json
+    Docs/
+      00-先读我-客户端文档入口.txt
+      01-客户端接入打包部署指南.md
+      02-编译环境和第三方依赖说明.md
+    bin/
+      Launcher
+      Updater
+      Bootstrap
+    Common/
+      ConfigHelper.h
+      ConfigHelper.cpp
+      TicketHelper.h
+      TicketHelper.cpp
+    config/
+      app_config.json
+      manifest_public_key.pem
+    scripts/
+      package-sdk.sh
+      package-client.sh
+    SimCAE自动升级SDK接入说明_v0.1.docx   # 可选：只有本地存在 Word 说明时才会出现
+  UpdateClientSDK-linux.tar.gz
+```
+
+## 三、你：把 SDK 放进业务软件目录
+
+假设业务软件目录是：
+
+```text
+D:\SimCAE\
+  bin\
+    SimCAE.exe
+    Qt5Core.dll
+    ...
+  Licenses\
+  installerResources\
+```
+
+推荐把 SDK 放到 `bin` 目录，和 `SimCAE.exe` 同级；后台发布新版本时仍选择整个 `D:\SimCAE\` 作为发布根目录。
+
+先解压 SDK：
+
+```powershell
+Expand-Archive D:\交付\UpdateClientSDK.zip -DestinationPath D:\SimCAE_SDK -Force
+```
+
+再安装到业务软件的 `bin` 目录：
+
+```powershell
+cd D:\SimCAE\bin
+
+D:\SimCAE_SDK\scripts\install-sdk.ps1 `
+  -SdkRoot D:\SimCAE_SDK `
+  -ReleaseDir .
+```
+
+安装后目录应类似：
+
+```text
+D:\SimCAE\
+  bin\
+    Launcher.exe
+    Updater.exe
+    Bootstrap.exe
+    SimCAE.exe
+    config\
+      app_config.json
+      manifest_public_key.pem
+    Qt5Core.dll
+    ...
+  Licenses\
+  installerResources\
+```
+
+如果你需要重新覆盖 `config/app_config.json`，执行安装脚本时加 `-OverwriteConfig`：
+
+```powershell
+D:\SimCAE_SDK\scripts\install-sdk.ps1 `
+  -SdkRoot D:\SimCAE_SDK `
+  -ReleaseDir D:\SimCAE\bin `
+  -OverwriteConfig
+```
+
+注意：SimCAE 自己已经带有 Qt 运行库。SDK 的 Launcher/Updater 应复用 SimCAE 的 `Qt5*.dll`、`platforms/`、`imageformats/` 等目录。不要把另一套 Qt DLL 覆盖到 `SimCAE\bin`，否则可能出现“无法定位程序输入点”一类错误。
+
+## 四、你：生成并填写客户端配置
+
+最推荐的方式是在服务端管理后台生成客户端配置：
+
+1. 浏览器打开服务端管理后台，例如 `http://服务器IP:8000/`。
+2. 登录后台。
+3. 创建或选择应用，例如 `app_id=simcae`。
+4. 创建 License。
+5. 在“客户端配置生成”区域选择应用、渠道、License 和主程序名。
+6. 点击生成配置。
+7. 复制“客户端 app_config.json”，覆盖 `D:\SimCAE\bin\config\app_config.json`。
+8. 复制“qrc 服务端配置 server_config.json”，覆盖 `update-client\config\server_config.json`，然后重新编译 Launcher / Updater / Bootstrap。这个文件会被 `config/server_config.qrc` 编进程序，不会放进用户机器的 `app_config.json` 或注册表。
+
+配置同步规则：
+
+- `app_config.json` 是部署配置源文件，适合交付、复制、人工修改。
+- `api_base_url` 不再属于 `app_config.json` 字段。它只存在于 `config/server_config.json`，并通过 qrc 编进程序。
+- 交付给你的 SDK 运行包不会包含 `server_config.json` 和 `server_config.qrc`。它们是编译材料，不是运行配置；修改 SDK 包里的文件不会改变已经编译好的 `Launcher.exe`。
+- Launcher / Updater / MainApp 启动时会计算 `app_config.json` 解析后的 JSON 内容 SHA256；如果 JSON 内容和上次导入时不同，就把文件里的配置重新写入当前 Windows 用户的注册表。
+- 后续运行时优先从注册表读取配置，不再每次直接读 JSON。
+- 运行过程中产生的动态值，例如首次输入的 `license_key`、服务端返回的 `device_id`、升级后的 `current_version`，会写入注册表。
+- 为减少明文暴露，SDK 成功把非空 `app_config.json` 导入注册表后，会把 `app_config.json` 内容自动清空为 `{}`，但不会删除这个文件。以后你从管理后台复制新的客户端配置时，直接覆盖这个文件即可。
+- SDK 会同步更新注册表里的 `source_sha256`，所以 `{}` 不会在下一次启动时反向覆盖注册表配置。
+- 如果你手动修改了 `app_config.json`，下一次启动会重新导入并覆盖注册表里的同名字段。
+- 如果检测到 `app_config.json` 确实发生变化，SDK 会同时删除当前用户数据目录里的 `client_identity.dat`、`version_policy.dat` 和 `local_state.json`，避免继续使用旧 License、旧设备身份、旧版本策略或旧防回滚状态；这些运行态文件不再默认写入安装目录。
+- 正常启动成功后，不要删除 `client_identity.dat`、`version_policy.dat`、`local_state.json`。它们分别用于本地设备身份、离线策略和防回滚/防时间倒退，删除后会影响离线启动或导致重新授权。
+- 注册表按安装目录隔离；同一台电脑上多个安装目录不会互相覆盖配置。
+- 注册表位置为 `HKEY_CURRENT_USER\Software\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\config`。
+
+关键字段说明：
+
+- `app_id`：服务端应用 ID，要和管理后台里的应用一致。
+- `app_name`：应用显示名称。
+- `channel`：发布渠道，例如 `stable`、`beta`、`dev`。
+- `current_version`：客户端当前初始版本，必须和后台已发布的版本一致。
+- `client_protocol`：客户端协议号，当前建议为 `3`。
+- `launch_token`：本机启动票据 HMAC 密钥。服务端生成配置时会填默认值；正式部署建议按项目统一修改。
+- `license_key`：管理后台创建 License 后生成的授权码。为空时首次启动 `Launcher.exe` 会弹窗让用户输入并保存到注册表；如果授权错误或过期，也会提示重新输入。
+- `client_token`：服务端 `.env` 中的 `CLIENT_API_TOKEN`，必须和服务端一致。
+- `device_id`：设备 ID。一般可以留空，首次启动时 SDK 会向服务端登记并写入注册表。
+- `install_root`：被更新的安装根目录相对 `Launcher.exe` 所在目录的位置。SDK 放在 `bin` 时填 `..`。
+- `main_executable`：业务主程序相对 `Launcher.exe` 所在目录的路径。SDK 放在 `bin` 且主程序也在 `bin` 时填 `SimCAE.exe`。
+- `launcher_executable`、`updater_executable`、`bootstrap_executable`：通常不用改。
+- `platform`、`arch`：当前为 `windows`、`x64`。
+
+典型配置：
+
+```json
+{
+  "app_id": "simcae",
+  "app_name": "SimCAE",
+  "channel": "stable",
+  "current_version": "1.0.0",
+  "client_protocol": "3",
+  "launch_token": "SimCAE_Launch_Token_2026_ChangeMe_32Bytes",
+  "license_key": "MARSCO-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
+  "client_token": "SimCAEClientToken2026",
+  "request_timeout_ms": "5000",
+  "temp_folder": "update_temp",
+  "device_id": "",
+  "install_root": "..",
+  "main_executable": "SimCAE.exe",
+  "launcher_executable": "Launcher.exe",
+  "updater_executable": "Updater.exe",
+  "bootstrap_executable": "Bootstrap.exe",
+  "health_check_timeout_ms": "15000",
+  "platform": "windows",
+  "arch": "x64"
+}
+```
+
+对应的 `config/server_config.json` 示例：
+
+```json
+{
+  "api_base_url": "http://192.168.229.128:8000"
+}
+```
+
+## 五、你：业务主程序需要配合什么
+
+当前安全模式下，业务主程序需要配合两件事：
+
+1. 接收 `--ticket-file=<path>` 参数，验证并消费一次性启动票据。
+2. 如果收到 `--health-file=<path>` 参数，启动成功后向该路径写入 `ok\n`，让 Updater 确认新版本可用。
+
+接入位置：
+
+```text
+main / WinMain 开头，创建主窗口之前
+```
+
+当前仓库里的 `update-client/MainApp/main.cpp` 是接入示例，已经实现：
+
+- 启动票据校验。
+- 本地 License/设备身份校验。
+- 本地策略校验。
+- Manifest 完整性校验。
+- 健康标记写入。
+
+真正接入业务软件时，把这些启动检查逻辑移植到业务主程序。用户入口应改成 `Launcher.exe`，不要让用户直接双击 `SimCAE.exe`。
+
+重要：业务主程序校验 ticket 时，必须使用 SDK 当前运行配置里的动态值，不要直接从 `app_config.json` 读取 `device_id`。
+
+原因是 `app_config.json` 是部署源文件，网页生成时 `device_id` 通常为空；真正的设备 ID 是 `Launcher.exe` 首次向服务端登记后写入当前用户注册表的。`Launcher.exe` 生成 ticket 时使用的是注册表里的真实 `device_id`。如果业务主程序从 `app_config.json` 读取空的 `device_id` 来校验，就会出现：
+
+```text
+ticket signature, identity, time or nonce invalid
+```
+
+或者细化后的：
+
+```text
+ticket device_id mismatch
+```
+
+业务主程序应像 `MainApp/main.cpp` 示例一样使用：
+
+```cpp
+ConfigHelper& config = ConfigHelper::instance();
+TicketHelper::consumeAndVerify(
+    ticketFilePath,
+    config.getValue("App", "app_id"),
+    config.getValue("Update", "device_id"),
+    config.getValue("App", "current_version"),
+    config.getValue("App", "launch_token"),
+    &ticketError);
+```
+
+也就是说，接入业务主程序时不能只复制一小段 ticket 代码后自己解析 JSON；要么复用 SDK 的 `ConfigHelper` / `TicketHelper`，要么保证业务主程序读取到的 `app_id`、`device_id`、`current_version`、`launch_token` 和 `Launcher.exe` 完全来自同一套运行配置。
+
+## 六、你：准备服务端数据
+
+首次联调前，服务端至少要准备这些内容：
+
+1. 创建应用，例如 `simcae`。
+2. 创建渠道，例如 `stable`。
+3. 创建 License。
+4. 发布一个初始版本，例如 `1.0.0`。
+5. 生成客户端配置，并写入 `bin\config\app_config.json`。客户端下次启动时会自动同步到注册表。
+6. 生成 qrc 服务端配置，并写入源码目录 `config\server_config.json` 后重新编译 SDK 程序。
+
+为什么必须先发布初始版本：Launcher 启动业务主程序前会做 Manifest 完整性校验。这个 Manifest 是服务端发布版本时生成并签名的清单，用来证明当前本地文件属于一个可信版本。如果没有发布过 `current_version` 对应版本，客户端会提示签名 Manifest 缓存缺失。
+
+后台发布版本时，选择整个安装根目录，例如 `D:\SimCAE\`，不要只选择 `D:\SimCAE\bin`。这样服务端会把 `bin/SimCAE.exe`、`Licenses/`、`installerResources/` 等完整结构写进 Manifest。
+
+## 七、你：运行和联调
+
+基础联调步骤：
+
+1. 确认服务端正在运行。
+2. 确认 `bin\config\app_config.json` 中 `client_token`、`license_key`、`current_version` 正确，并确认 `Launcher.exe` 已用正确的 `config/server_config.json` 重新编译。
+3. 双击 `bin\Launcher.exe`。
+4. 首次启动时如果 `license_key` 为空，按弹窗输入后台创建的 License；SDK 会把它保存到注册表。
+5. 成功进入业务主程序后，回到后台查看设备、升级日志、下载日志。
+6. 在后台发布更高版本，例如从 `1.0.0` 发布到 `1.0.1`。
+7. 再次启动 `Launcher.exe`，验证升级、健康确认和回滚逻辑。
+
+联调目录建议：
+
+```text
+D:\SimCAE_Release\
+C:\Users\<你的用户名>\Desktop\SimCAE_Release\
+```
+
+如果安装在 `C:\Program Files\...`、`D:\...` 或其他普通用户不一定可写的目录，SDK 的普通配置值会写入当前用户注册表，不需要修改 `app_config.json`。`client_identity.dat`、`local_state.json`、`version_policy.dat`、更新缓存和 Manifest 缓存也会写入当前用户数据目录，不再默认写到安装目录。
+
+Windows 用户数据目录类似：`%LOCALAPPDATA%\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\`。因此日常启动、首次授权、保存设备身份、保存策略、防回滚状态和下载缓存不应再触发管理员权限确认框。只有真正要替换安装目录里的 EXE/DLL 等程序文件时，才需要保证安装目录可写，或让安装器/Updater 具备相应权限。
+
+## 八、维护者：生成某个产品的最终客户端包
+
+SDK 是给接入方开发使用的。最终给用户安装或分发时，可以从已经联调过的 Release 目录生成最终客户端包。
+
+在 Windows PowerShell 中执行：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+
+.\scripts\package-client.ps1 `
+  -SourceDir .\out\bin\Release `
+  -ConfigFile .\config\app_config.json `
+  -OutputDir .\dist\UpdateClient `
+  -ZipFile .\dist\UpdateClient.zip
+```
+
+`package-client.ps1` 会检查：
+
+- 配置文件必填字段是否完整。
+- 主程序、Launcher、Updater、Bootstrap 是否存在。
+- 是否混入 Debug DLL、PDB、ILK。
+- 当前版本是否已有签名 Manifest 缓存。脚本会优先从当前用户数据目录读取：
+  `%LOCALAPPDATA%\Marsco\UpdateClientSDK\installations\<安装目录SHA256>\update\manifest_cache`。
+  同时兼容旧版 Release 目录里的 `update\manifest_cache`。
+- 是否存在重复主程序。
+
+生成结果：
+
+```text
+dist/
+  UpdateClient/
+  UpdateClient.zip
+```
+
+Linux 最终客户端包生成方式：
+
+```bash
+cd /home/laluo/project/update-client
+
+bash ./scripts/package-client.sh \
+  --source-dir /path/to/SimCAE \
+  --config-file /path/to/SimCAE/bin/config/app_config.json \
+  --output-dir ./dist/UpdateClient-linux \
+  --archive ./dist/UpdateClient-linux.tar.gz
+```
+
+Linux 打包脚本会检查：
+
+- `app_config.json` 必填字段是否完整。
+- 主程序、Launcher、Updater、Bootstrap 是否存在。
+- 是否混入 Debug 产物。
+- 当前版本是否已有签名 Manifest 缓存。脚本会优先从当前用户数据目录读取：
+  `$XDG_DATA_HOME/Marsco/UpdateClientSDK/installations/<安装目录SHA256>/update/manifest_cache`，
+  未设置 `XDG_DATA_HOME` 时通常是 `~/.local/share/Marsco/UpdateClientSDK/installations/<安装目录SHA256>/update/manifest_cache`。
+  同时兼容旧版 Release 目录里的 `update/manifest_cache`。
+- 是否存在重复主程序。
+
+Linux 下如果程序安装在 `/opt`、`/usr/local` 等普通用户不可写目录，升级器无法像 Windows UAC 那样自动提权修改安装目录。正式部署前建议二选一：
+
+1. 把软件安装到当前用户有写权限的目录，例如用户 home 下的应用目录。
+2. 由安装器创建专用目录和权限，让运行用户对软件目录有写入权限。
+
+## 九、常见错误
+
+1. 直接启动业务主程序提示 ticket 错误：应从 `Launcher.exe` 启动。
+2. 首次启动保存配置/状态文件失败：如果目录不可写，SDK 会弹出管理员权限确认框；用户取消或当前账号没有管理员权限时仍会失败。
+3. 首次启动设备登记失败：检查编译进 qrc 的 `config/server_config.json`、`client_token`、`license_key`、服务端 License 状态。
+4. 提示 License 错误或过期：在后台确认 License 是否存在、是否被禁用或删除、是否超过最大设备数。
+5. 策略或 Manifest 验签失败：检查 `config/manifest_public_key.pem` 是否和服务端私钥匹配。
+6. 提示 signed manifest cache missing：先在后台发布一次 `current_version` 对应版本，并让客户端拿到该版本 Manifest。
+7. 升级后回滚：检查业务程序是否在 `health_check_timeout_ms` 内写入健康标记。
+8. 发布失败提示主程序不在根目录：服务端 `.env` 中 `RELEASE_MAIN_EXECUTABLE` 要和平台匹配。Windows 通常是 `bin/SimCAE.exe`；Linux 通常是 `bin/SimCAE`。
+9. 启动时提示 `无法定位程序输入点 ... Qt5*.dll`：通常是 Qt DLL 被不同版本覆盖或混用。恢复业务软件原始 Qt DLL，并重新打包 SDK；SimCAE 场景下不要使用 `-IncludeQtRuntime`。

Docs/02-编译环境和第三方依赖说明.md

@@ -0,0 +1,175 @@
+# 客户端编译环境和第三方依赖说明
+
+`thirdparty/` 是本机依赖目录，已经被 `.gitignore` 忽略，不会提交到 Git。
+
+当前客户端构建依赖：
+
+1. Qt 5.15.2 或兼容的 Qt 5 版本
+2. OpenSSL
+
+Windows 下推荐使用 Qt 5.15.2 msvc2019_64 和 OpenSSL-Win64；Linux 下使用系统安装的 Qt/OpenSSL 开发包。
+
+先看结论：
+
+- Windows：配置 Qt 环境变量，把 OpenSSL 复制到 `thirdparty/OpenSSL-Win64`。
+- Linux：用 apt 安装 Qt/OpenSSL 开发包。
+- `thirdparty/` 只放本机依赖，不提交 Git。
+
+## 1. Qt 配置
+
+### Windows
+
+Qt 路径由本机环境变量提供。你需要在 Windows 环境变量里配置 Qt 路径，让 CMake 的 `find_package(Qt5 ...)` 能找到 Qt。
+
+推荐配置用户环境变量 `CMAKE_PREFIX_PATH`：
+
+```powershell
+[Environment]::SetEnvironmentVariable("CMAKE_PREFIX_PATH", "C:\Qt\5.15.2\msvc2019_64", "User")
+```
+
+设置完成后，重新打开 PowerShell 或 Visual Studio。
+
+如果只想对当前 PowerShell 窗口临时生效：
+
+```powershell
+$env:CMAKE_PREFIX_PATH="C:\Qt\5.15.2\msvc2019_64"
+```
+
+也可以配置更精确的 `Qt5_DIR`：
+
+```powershell
+[Environment]::SetEnvironmentVariable("Qt5_DIR", "C:\Qt\5.15.2\msvc2019_64\lib\cmake\Qt5", "User")
+```
+
+`CMAKE_PREFIX_PATH` 和 `Qt5_DIR` 二选一即可，推荐使用 `CMAKE_PREFIX_PATH`。
+
+一般不需要把 `C:\Qt\5.15.2\msvc2019_64\bin` 加入 `Path`。项目构建后会通过 `windeployqt` 复制运行所需的 Qt DLL。
+
+### Linux
+
+Linux 下需要安装 Qt5 开发包，让 CMake 能找到 `Qt5::Core`、`Qt5::Network`、`Qt5::Gui`、`Qt5::Widgets`。
+
+Ubuntu/Debian 示例：
+
+```bash
+sudo apt update
+sudo apt install -y build-essential cmake qtbase5-dev qttools5-dev-tools libssl-dev
+```
+
+如果 Qt 安装在自定义目录，可以临时设置：
+
+```bash
+export CMAKE_PREFIX_PATH=/path/to/Qt/5.x/gcc_64
+```
+
+## 2. OpenSSL 配置
+
+### Windows
+
+OpenSSL 默认放在：
+
+```text
+thirdparty/OpenSSL-Win64
+```
+
+推荐目录结构：
+
+```text
+thirdparty/
+  OpenSSL-Win64/
+    include/
+      openssl/
+    lib/
+      VC/
+        x64/
+          MD/
+          MDd/
+```
+
+复制命令示例：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+mkdir thirdparty
+Copy-Item "C:\Program Files\OpenSSL-Win64" ".\thirdparty\OpenSSL-Win64" -Recurse
+```
+
+如果 OpenSSL 不放在 `thirdparty/`，可以在配置 CMake 时手动指定：
+
+```powershell
+cmake -S . -B out\build\x64-Debug `
+  -G "Visual Studio 17 2022" `
+  -A x64 `
+  -DSIMCAE_OPENSSL_ROOT="C:\Program Files\OpenSSL-Win64"
+```
+
+### Linux
+
+Linux 下 CMake 会通过 `find_package(OpenSSL REQUIRED)` 查找系统 OpenSSL。通常安装 `libssl-dev` 即可，不需要 `thirdparty/OpenSSL-Win64`。
+
+## 3. Windows 重新配置和编译
+
+如果之前配置过 CMake，建议先删除旧缓存：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+Remove-Item out\build -Recurse -Force
+```
+
+重新配置：
+
+```powershell
+cmake -S . -B out\build\x64-Debug `
+  -G "Visual Studio 17 2022" `
+  -A x64
+```
+
+编译：
+
+```powershell
+cmake --build out\build\x64-Debug --config Debug
+```
+
+## 4. Linux 重新配置和编译
+
+如果之前配置过 CMake，建议先删除旧缓存：
+
+```bash
+cd ~/project/update-client
+rm -rf out/build/linux-x64-debug out/build/linux-x64-release
+```
+
+Debug 构建：
+
+```bash
+cmake --preset linux-x64-debug
+cmake --build --preset linux-x64-debug
+```
+
+Release 构建：
+
+```bash
+cmake --preset linux-x64-release
+cmake --build --preset linux-x64-release
+```
+
+Linux 构建时会自动使用 `config/app_config.linux.example.json` 作为输出目录里的默认 `config/app_config.json`，可执行程序名不带 `.exe`。
+
+## 5. 提交注意事项
+
+不要提交下面这些内容：
+
+```text
+thirdparty/
+.vs/
+out/
+build/
+dist/
+App/
+*.exe
+*.dll
+*.lib
+*.pdb
+```
+
+这些都属于本机依赖、构建产物或打包产物，不应该进 Git。

Launcher/CMakeLists.txt

@@ -3,20 +3,20 @@ project(LauncherDemo LANGUAGES C CXX)
 # C++标准
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-# Qt 自动处理ui/moc/rcc
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTOUIC ON)
-set(CMAKE_AUTORCC ON)
-# 依赖Qt模块：网络、基础核心、窗口
-set(CMAKE_PREFIX_PATH "C:\\Qt\\5.15.2\\msvc2019_64" ${CMAKE_PREFIX_PATH})
-find_package(Qt5 REQUIRED COMPONENTS Core Network Gui Widgets)
-# 所有源码文件
-set(SRC_LIST
-    main.cpp
-    UpdateLogic.h
-    UpdateLogic.cpp
-)
+# Qt 自动处理ui/moc/rcc
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTORCC ON)
+
+# 所有源码文件
+set(SRC_LIST
+    main.cpp
+	    UpdateLogic.h
+	    UpdateLogic.cpp
+	    ${CMAKE_SOURCE_DIR}/i18n/update-client.qrc
+	    ${CMAKE_SOURCE_DIR}/config/server_config.qrc
+	)
 # 生成可执行程序
 add_executable(Launcher ${SRC_LIST})
 if(WIN32)
@@ -28,12 +28,8 @@ target_include_directories(Launcher PRIVATE ${OPENSSL_INC})
 
 # 链接Common，自动带上OpenSSL库
 target_link_libraries(Launcher Common Qt5::Core Qt5::Network Qt5::Gui Qt5::Widgets)
-# 输出编译产物到 out 文件夹（干净不乱）
-set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/lib)
-set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/bin)
-set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}/out/bin)
-# 强制VS打开CMake文件夹时默认选中该可执行目标
-set_property(DIRECTORY ${CMAKE_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Launcher)
+# 强制VS打开CMake文件夹时默认选中该可执行目标
+set_property(DIRECTORY ${CMAKE_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT Launcher)
 # 编译完成自动执行windeployqt，复制Qt dll到exe目录
 if(WIN32)
     get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)

Launcher/UpdateLogic.cpp

@@ -1,117 +1,243 @@
-#include "UpdateLogic.h"
-#include "ConfigHelper.h"
-#include <QDebug>
-#include <QJsonArray>
-#include <QApplication>
-#include "PolicyHelper.h"
-#include "LocalStateHelper.h"
+#include "UpdateLogic.h"
+#include "ConfigHelper.h"
+#include <QDebug>
+#include <QJsonArray>
+#include <QApplication>
+#include <QDir>
+#include <QSaveFile>
+#include "PolicyHelper.h"
+#include "LocalStateHelper.h"
+
+UpdateLogic::UpdateLogic(QObject* parent)
+    : QObject(parent)
+{
+    ConfigHelper& cfg = ConfigHelper::instance();
+    m_serverAddr = cfg.getValue("Server", "api_base_url");
+    m_appId = cfg.getValue("App", "app_id");
+    m_curVer = cfg.getValue("App", "current_version");
+    m_channel = cfg.getValue("App", "channel");
+
+    // Debug print config
+    qDebug() << "Read server addr:" << m_serverAddr;
+    qDebug() << "Read app id:" << m_appId;
+}
+
+void UpdateLogic::checkUpdate()
+{
+    if (m_serverAddr.isEmpty() || m_appId.isEmpty() || m_curVer.isEmpty() || m_channel.isEmpty())
+    {
+        qDebug() << "Config incomplete, abort update check";
+        m_needUpdate = false;
+        return;
+    }
+    QString url = m_serverAddr + "/api/v1/update/check";
+    QJsonObject body;
+    body["app_id"] = m_appId;
+    body["current_version"] = m_curVer;
+    body["channel"] = m_channel;
+    const int configuredProtocol = ConfigHelper::instance().getValue("App", "client_protocol").toInt();
+    body["client_protocol"] = qMax(3, configuredProtocol);
+
+    m_http.postRequest(url, body, [this](int code, const QJsonObject& resp)
+        {
+            qDebug() << "Check update HTTP code:" << code;
+            m_lastStatusCode = code;
+            m_checkResp = resp;
+            m_networkOk = (code == 200);
+            if (code == 200)
+            {
+                const QString appDir = QApplication::applicationDirPath();
+                PolicyHelper onlinePolicy(appDir);
+                LocalStateHelper state(appDir);
+                const bool stateLoaded = state.loadState();
+                const bool policyValid = onlinePolicy.loadPolicyObject(
+                    resp.value("policy").toObject(), resp.value("policy_text").toString());
+                if (!policyValid || !stateLoaded
+                    || state.isPolicySeqRolledBack(onlinePolicy.policySeq())
+                    || !onlinePolicy.savePolicy())
+                {
+                    qDebug() << "Online policy rejected:" << onlinePolicy.errorString();
+                    m_networkOk = false;
+                    m_needUpdate = false;
+                    return;
+                }
+                state.updateOnlineVerified(onlinePolicy.policySeq());
+                if (!state.saveState())
+                {
+                    qDebug() << "Cannot persist online policy state";
+                    m_networkOk = false;
+                    m_needUpdate = false;
+                    return;
+                }
+                m_needUpdate = resp["need_update"].toBool();
+                m_latestVer = resp["latest_version"].toString();
+                qDebug() << "Need update:" << m_needUpdate;
+                qDebug() << "Latest version:" << m_latestVer;
+                qDebug() << "Policy seq:" << onlinePolicy.policySeq();
+            }
+            else
+            {
+                m_needUpdate = false;
+                qDebug() << "Check update api failed";
+            }
+        });
+}
+
+void UpdateLogic::getDownloadUrl(const QString& appId, const QString& channel, const QString& ver, int verId)
+{
+    QString url = m_serverAddr + "/api/v1/update/download-url";
+    QJsonObject body;
+    body["app_id"] = appId;
+    body["channel"] = channel;
+    body["version"] = ver;
+    body["version_id"] = verId;
+    QJsonArray files;
+    body["files"] = files;
+
+    m_http.postRequest(url, body, [](int code, const QJsonObject& resp)
+        {
+            qDebug() << "\n========== File Download Url ==========";
+            qDebug() << resp["files"].toArray();
+        });
+}
+
+bool UpdateLogic::cacheManifest(const QString& appId, const QString& channel, const QString& version,
+                                int versionId, const QString& cacheDir)
+{
+    m_error.clear();
+    if (appId.isEmpty() || channel.isEmpty() || version.isEmpty() || versionId <= 0) {
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "Current version manifest identity is incomplete. Stage: cache current version manifest. App: %1, channel: %2, version: %3, version id: %4.")
+            .arg(appId, channel, version, QString::number(versionId));
+        return false;
+    }
+
+    QJsonObject response;
+    int statusCode = 0;
+    QJsonObject body;
+    body["app_id"] = appId;
+    body["channel"] = channel;
+    body["version"] = version;
+    body["version_id"] = versionId;
+    m_http.postRequest(m_serverAddr + "/api/v1/update/manifest", body,
+        [&](int code, const QJsonObject& resp) {
+            statusCode = code;
+            response = resp;
+        });
 
-UpdateLogic::UpdateLogic(QObject* parent)
-    : QObject(parent)
-{
-    ConfigHelper& cfg = ConfigHelper::instance();
-    m_serverAddr = cfg.getValue("Server", "api_base_url");
-    m_appId = cfg.getValue("App", "app_id");
-    m_curVer = cfg.getValue("App", "current_version");
-    m_channel = cfg.getValue("App", "channel");
-
-    // Debug print config
-    qDebug() << "Read server addr:" << m_serverAddr;
-    qDebug() << "Read app id:" << m_appId;
+    if (statusCode != 200) {
+        const QJsonValue detail = response.value(QStringLiteral("detail"));
+        const QString message = detail.isObject()
+            ? detail.toObject().value(QStringLiteral("msg")).toString()
+            : detail.toString();
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "Cannot download signed manifest for the current local version. Stage: cache current version manifest. HTTP status: %1. App: %2, channel: %3, version: %4, version id: %5.%6")
+            .arg(QString::number(statusCode), appId, channel, version, QString::number(versionId),
+                 message.isEmpty() ? QString() : QCoreApplication::translate("UpdateLogic", "\nServer message: %1").arg(message));
+        return false;
+    }
+
+    const QJsonObject manifest = response.value("manifest").toObject();
+    const QString manifestText = response.value("manifest_text").toString();
+    if (manifest.isEmpty() || manifestText.isEmpty()) {
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "The signed manifest response for the current local version is incomplete. Stage: cache current version manifest. App: %1, channel: %2, version: %3, version id: %4.")
+            .arg(appId, channel, version, QString::number(versionId));
+        return false;
+    }
+    if (manifest.value("app_id").toString() != appId
+        || manifest.value("channel").toString() != channel
+        || manifest.value("version").toString() != version) {
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "The signed manifest identity does not match the current local version. Stage: cache current version manifest. Expected app/channel/version: %1 / %2 / %3. Manifest app/channel/version: %4 / %5 / %6.")
+            .arg(appId, channel, version,
+                 manifest.value("app_id").toString(),
+                 manifest.value("channel").toString(),
+                 manifest.value("version").toString());
+        return false;
+    }
+
+    QDir dir(cacheDir);
+    if (!dir.exists() && !dir.mkpath(".")) {
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "Cannot create manifest cache directory. Stage: cache current version manifest. Directory: %1.")
+            .arg(cacheDir);
+        return false;
+    }
+
+    QJsonObject wrapper;
+    wrapper["manifest"] = manifest;
+    wrapper["manifest_text"] = manifestText;
+    QSaveFile file(dir.filePath("manifest_" + version + ".json"));
+    const QByteArray bytes = QJsonDocument(wrapper).toJson(QJsonDocument::Indented);
+    if (!file.open(QIODevice::WriteOnly) || file.write(bytes) != bytes.size() || !file.commit()) {
+        m_error = QCoreApplication::translate("UpdateLogic",
+            "Cannot save signed manifest cache. Stage: cache current version manifest. File: %1. Error: %2.")
+            .arg(file.fileName(), file.errorString());
+        return false;
+    }
+    qDebug() << "Current version manifest cached to" << file.fileName();
+    return true;
 }
 
-void UpdateLogic::checkUpdate()
+bool UpdateLogic::refreshGitTagsFile(const QString& outputPath)
 {
-    if (m_serverAddr.isEmpty() || m_appId.isEmpty() || m_curVer.isEmpty() || m_channel.isEmpty())
-    {
-        qDebug() << "Config incomplete, abort update check";
-        m_needUpdate = false;
-        return;
+    m_error.clear();
+    if (m_serverAddr.isEmpty()) {
+        m_error = QCoreApplication::translate("UpdateLogic", "Server address is empty.");
+        return false;
     }
-    QString url = m_serverAddr + "/api/v1/update/check";
+
+    QJsonObject response;
+    int statusCode = 0;
     QJsonObject body;
     body["app_id"] = m_appId;
-    body["current_version"] = m_curVer;
     body["channel"] = m_channel;
-    const int configuredProtocol = ConfigHelper::instance().getValue("App", "client_protocol").toInt();
-    body["client_protocol"] = qMax(3, configuredProtocol);
-
-    m_http.postRequest(url, body, [this](int code, const QJsonObject& resp)
-        {
-            qDebug() << "Check update HTTP code:" << code;
-            m_lastStatusCode = code;
-            m_checkResp = resp;
-            m_networkOk = (code == 200);
-            if (code == 200)
-            {
-                const QString appDir = QApplication::applicationDirPath();
-                PolicyHelper onlinePolicy(appDir);
-                LocalStateHelper state(appDir);
-                const bool stateLoaded = state.loadState();
-                const bool policyValid = onlinePolicy.loadPolicyObject(
-                    resp.value("policy").toObject(), resp.value("policy_text").toString());
-                if (!policyValid || !stateLoaded
-                    || state.isPolicySeqRolledBack(onlinePolicy.policySeq())
-                    || !onlinePolicy.savePolicy())
-                {
-                    qDebug() << "Online policy rejected:" << onlinePolicy.errorString();
-                    m_networkOk = false;
-                    m_needUpdate = false;
-                    return;
-                }
-                state.updateOnlineVerified(onlinePolicy.policySeq());
-                if (!state.saveState())
-                {
-                    qDebug() << "Cannot persist online policy state";
-                    m_networkOk = false;
-                    m_needUpdate = false;
-                    return;
-                }
-                m_needUpdate = resp["need_update"].toBool();
-                m_latestVer = resp["latest_version"].toString();
-                qDebug() << "Need update:" << m_needUpdate;
-                qDebug() << "Latest version:" << m_latestVer;
-                qDebug() << "Policy seq:" << onlinePolicy.policySeq();
-            }
-            else
-            {
-                m_needUpdate = false;
-                qDebug() << "Check update api failed";
-            }
+    m_http.postRequest(m_serverAddr + "/api/v1/git/tags", body,
+        [&](int code, const QJsonObject& resp) {
+            statusCode = code;
+            response = resp;
         });
-}
 
-void UpdateLogic::getDownloadUrl(const QString& appId, const QString& channel, const QString& ver, int verId)
-{
-    QString url = m_serverAddr + "/api/v1/update/download-url";
-    QJsonObject body;
-    body["app_id"] = appId;
-    body["channel"] = channel;
-    body["version"] = ver;
-    body["version_id"] = verId;
-    QJsonArray files;
-    body["files"] = files;
+    if (statusCode != 200) {
+        const QJsonValue detail = response.value("detail");
+        const QString message = detail.isObject()
+            ? detail.toObject().value("msg").toString()
+            : detail.toString();
+        m_error = message.isEmpty()
+            ? QCoreApplication::translate("UpdateLogic", "Git tags request failed (HTTP %1).").arg(statusCode)
+            : message;
+        return false;
+    }
 
-    m_http.postRequest(url, body, [](int code, const QJsonObject& resp)
-        {
-            qDebug() << "\n========== File Download Url ==========";
-            qDebug() << resp["files"].toArray();
-        });
+    const QString tagsText = response.value("tags_text").toString();
+    if (tagsText.isEmpty()) {
+        m_error = QCoreApplication::translate("UpdateLogic", "Git tags response is empty.");
+        return false;
+    }
+
+    QString writeError;
+    if (!ConfigHelper::writeFileWithElevationIfNeeded(outputPath, tagsText.toUtf8(), &writeError)) {
+        m_error = QCoreApplication::translate("UpdateLogic", "Cannot write Git tags file: %1").arg(writeError);
+        return false;
+    }
+    qDebug() << "Git tags file refreshed:" << outputPath;
+    return true;
 }
 
 void UpdateLogic::reportUpdateResult(const QString& deviceId, const QString& fromVer, const QString& toVer, bool success)
 {
-    QString url = m_serverAddr + "/api/v1/update/report";
-    QJsonObject body;
-    body["app_id"] = m_appId;
-    body["device_id"] = deviceId;
-    body["from_version"] = fromVer;
-    body["to_version"] = toVer;
-    body["result"] = success ? "success" : "fail";
-
-    m_http.postRequest(url, body, [](int code, const QJsonObject& resp)
-        {
-            qDebug() << "\n========== Update Report Result ==========";
-            qDebug() << resp;
-        });
-}
+    QString url = m_serverAddr + "/api/v1/update/report";
+    QJsonObject body;
+    body["app_id"] = m_appId;
+    body["device_id"] = deviceId;
+    body["from_version"] = fromVer;
+    body["to_version"] = toVer;
+    body["result"] = success ? "success" : "fail";
+
+    m_http.postRequest(url, body, [](int code, const QJsonObject& resp)
+        {
+            qDebug() << "\n========== Update Report Result ==========";
+            qDebug() << resp;
+        });
+}

Launcher/UpdateLogic.h

@@ -10,15 +10,19 @@ class UpdateLogic : public QObject
 public:
     explicit UpdateLogic(QObject* parent = nullptr);
 
-    void checkUpdate();
-    void getDownloadUrl(const QString& appId, const QString& channel, const QString& ver, int verId);
-    void reportUpdateResult(const QString& deviceId, const QString& fromVer, const QString& toVer, bool success);
-
-    bool getNeedUpdate() const { return m_needUpdate; }
-    QString getLatestVersion() const { return m_latestVer; }
-    QJsonObject getCheckResult() const { return m_checkResp; }
-    bool isNetworkOk() const { return m_networkOk; }
-    int lastStatusCode() const { return m_lastStatusCode; }
+    void checkUpdate();
+    void getDownloadUrl(const QString& appId, const QString& channel, const QString& ver, int verId);
+    void reportUpdateResult(const QString& deviceId, const QString& fromVer, const QString& toVer, bool success);
+    bool cacheManifest(const QString& appId, const QString& channel, const QString& version,
+                       int versionId, const QString& cacheDir);
+    bool refreshGitTagsFile(const QString& outputPath);
+
+    bool getNeedUpdate() const { return m_needUpdate; }
+    QString getLatestVersion() const { return m_latestVer; }
+    QJsonObject getCheckResult() const { return m_checkResp; }
+    bool isNetworkOk() const { return m_networkOk; }
+    int lastStatusCode() const { return m_lastStatusCode; }
+    QString errorString() const { return m_error; }
 
     QString getAppId() const { return m_appId; }
     QString getChannel() const { return m_channel; }
@@ -32,7 +36,8 @@ private:
 
     bool m_needUpdate = false;
     bool m_networkOk = false;
-    int m_lastStatusCode = 0;
-    QString m_latestVer;
-    QJsonObject m_checkResp;
-};
+    int m_lastStatusCode = 0;
+    QString m_latestVer;
+    QJsonObject m_checkResp;
+    QString m_error;
+};

Launcher/main.cpp

@@ -1,282 +1,426 @@
-#include <windows.h>
 #include <QApplication>
+#include <QCoreApplication>
 #include <QDebug>
 #include <QMessageBox>
 #include <QProcess>
 #include <QProgressDialog>
 #include <QInputDialog>
 #include <QLineEdit>
-#include <QTextCodec>
+#include <QTranslator>
 #include "UpdateLogic.h"
-#include "../Common/ConfigHelper.h"
-#include "../Common/PolicyHelper.h"
-#include "../Common/LocalStateHelper.h"
-#include "../Common/TicketHelper.h"
-#include "../Common/DeviceIdentityHelper.h"
-#include <QFile>
-#include <QFileDialog>
-#include <QDir>
-
+#include "../Common/ConfigHelper.h"
+#include "../Common/PolicyHelper.h"
+#include "../Common/LocalStateHelper.h"
+#include "../Common/TicketHelper.h"
+#include "../Common/DeviceIdentityHelper.h"
+#include <QFile>
+#include <QFileDialog>
+#include <QDir>
+
 int main(int argc, char* argv[])
 {
-    SetConsoleOutputCP(65001);
-    QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
     QApplication app(argc, argv);
     QApplication::setApplicationName("Marsco Launcher");
+    QTranslator translator;
+    if (translator.load(":/i18n/update-client_zh_CN.qm"))
+        app.installTranslator(&translator);
 
-    QProgressDialog progress("正在检查软件更新...", QString(), 0, 0);
-    progress.setWindowTitle("Marsco 软件启动器");
-    progress.setCancelButton(nullptr);
-    progress.setWindowModality(Qt::ApplicationModal);
-    progress.setMinimumDuration(0);
-    progress.setAutoClose(false);
-    progress.show();
-    QApplication::processEvents();
+    const int elevatedWriteExitCode = ConfigHelper::runElevatedWriteCommandIfRequested();
+    if (elevatedWriteExitCode >= 0)
+        return elevatedWriteExitCode;
 
-    const QString appDir = QApplication::applicationDirPath();
+    QProgressDialog progress(QCoreApplication::translate("Launcher", "Checking for software updates..."), QString(), 0, 0);
+    progress.setWindowTitle(QCoreApplication::translate("Launcher", "Marsco Launcher"));
+    progress.setCancelButton(nullptr);
+    progress.setWindowModality(Qt::ApplicationModal);
+    progress.setMinimumDuration(0);
+    progress.setAutoClose(false);
+    progress.show();
+    QApplication::processEvents();
+
+    const QString appDir = QApplication::applicationDirPath();
     ConfigHelper& config = ConfigHelper::instance();
-    const auto isLicenseError = [](const QString& errorText) {
-        const QString text = errorText.toLower();
+    const auto isLicenseError = [](const QString& errorText) {
+        const QString text = errorText.toLower();
         return text.contains("license")
-            || errorText.contains("授权")
-            || errorText.contains("过期")
-            || errorText.contains("设备数量已达到上限")
-            || errorText.contains("已绑定其他授权");
+            || text.contains("authorization")
+            || text.contains("expired")
+            || text.contains("device limit")
+            || text.contains("bound to another license");
     };
     const auto clearDeviceCredential = [&]() {
-        QFile::remove(QDir(appDir).filePath("config/client_identity.dat"));
+        ConfigHelper::removeFileWithElevationIfNeeded(ConfigHelper::instance().clientIdentityPath());
         config.setValue("Update", "device_id", QString());
     };
-    QString licenseKey = config.getValue("License", "license_key").trimmed();
-    auto promptAndSaveLicense = [&](const QString& reason) -> QString {
-        QString promptReason = reason;
-        while (true) {
-            progress.close();
+    QString licenseKey = config.getValue("License", "license_key").trimmed();
+    auto promptAndSaveLicense = [&](const QString& reason) -> QString {
+        QString promptReason = reason;
+        while (true) {
+            progress.close();
             bool accepted = false;
             const QString appName = config.getValue("App", "app_name").trimmed();
             const QString prompt = promptReason.trimmed().isEmpty()
-                ? QString("请输入%1授权 License：").arg(appName.isEmpty() ? "软件" : appName)
-                : QString("%1\n\n请重新输入%2授权 License：").arg(promptReason, appName.isEmpty() ? "软件" : appName);
+                ? QCoreApplication::translate("Launcher", "Please enter the License for %1:")
+                    .arg(appName.isEmpty() ? QCoreApplication::translate("Launcher", "the application") : appName)
+                : QCoreApplication::translate("Launcher", "%1\n\nPlease enter a new License for %2:")
+                    .arg(promptReason, appName.isEmpty() ? QCoreApplication::translate("Launcher", "the application") : appName);
             licenseKey = QInputDialog::getText(
                 nullptr,
-                "输入 License",
+                QCoreApplication::translate("Launcher", "Enter License"),
                 prompt,
-                QLineEdit::Normal,
-                QString(),
-                &accepted
+                QLineEdit::Normal,
+                QString(),
+                &accepted
             ).trimmed();
             if (!accepted) {
-                QMessageBox::information(nullptr, "需要 License", "首次启动需要输入管理员提供的 License。");
+                QMessageBox::information(nullptr,
+                    QCoreApplication::translate("Launcher", "License Required"),
+                    QCoreApplication::translate("Launcher", "A License provided by the administrator is required for the first launch."));
                 return QString();
             }
             if (licenseKey.isEmpty()) {
-                QMessageBox::warning(nullptr, "License 不能为空", "请粘贴管理员在后台创建的 License。");
+                QMessageBox::warning(nullptr,
+                    QCoreApplication::translate("Launcher", "License Cannot Be Empty"),
+                    QCoreApplication::translate("Launcher", "Please paste the License created in the admin page."));
                 promptReason.clear();
                 continue;
             }
             if (!config.setValue("License", "license_key", licenseKey)) {
-                QMessageBox::critical(nullptr, "保存 License 失败",
-                    QString("无法写入配置文件：%1\n%2").arg(config.configPath(), config.lastError()));
+                QMessageBox::critical(nullptr,
+                    QCoreApplication::translate("Launcher", "Failed to Save License"),
+                    QCoreApplication::translate("Launcher", "Cannot write the configuration file:\n%1\n%2").arg(config.configPath(), config.lastError()));
                 return QString();
             }
             progress.show();
-            progress.setLabelText("正在验证 License...");
-            QApplication::processEvents();
-            return licenseKey;
-        }
-    };
-
+            progress.setLabelText(QCoreApplication::translate("Launcher", "Verifying License..."));
+            QApplication::processEvents();
+            return licenseKey;
+        }
+    };
+
     while (true) {
+        // License 首次为空、过期或已达设备上限时，在 Launcher 内引导用户重新输入。
+        // 成功后服务端会签发 client_identity.dat，并把真实 device_id 写入运行配置。
         if (licenseKey.isEmpty()) {
-            licenseKey = promptAndSaveLicense(QString());
-            if (licenseKey.isEmpty()) return 0;
-        }
-        DeviceIdentityHelper identity(appDir);
-        if (identity.ensureIssued(config.getValue("Server", "api_base_url"),
-                                  config.getValue("Server", "client_token"),
-                                  config.getValue("App", "app_id"),
-                                  config.getValue("App", "channel"),
-                                  licenseKey)) {
-            break;
-        }
-        const QString error = identity.errorString();
-        if (!isLicenseError(error)) {
+            licenseKey = promptAndSaveLicense(QString());
+            if (licenseKey.isEmpty()) return 0;
+        }
+        DeviceIdentityHelper identity(appDir);
+        if (identity.ensureIssued(config.getValue("Server", "api_base_url"),
+                                  config.getValue("Server", "client_token"),
+                                  config.getValue("App", "app_id"),
+                                  config.getValue("App", "channel"),
+                                  licenseKey)) {
+            break;
+        }
+        const QString error = identity.errorString();
+        if (!isLicenseError(error)) {
             progress.close();
-            QMessageBox::critical(nullptr, "设备身份验证失败", error);
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Device Authentication Failed"),
+                error);
             return -1;
         }
         clearDeviceCredential();
-        licenseKey = promptAndSaveLicense(QString("当前 License 无法使用：%1").arg(error));
-        if (licenseKey.isEmpty()) return 0;
-    }
-
-    UpdateLogic logic;
-    logic.checkUpdate();
-
-    const bool needUpdate = logic.getNeedUpdate();
-    const bool networkOk = logic.isNetworkOk();
-    const QString latestVer = logic.getLatestVersion();
+        licenseKey = promptAndSaveLicense(QCoreApplication::translate("Launcher", "The current License cannot be used: %1").arg(error));
+        if (licenseKey.isEmpty()) return 0;
+    }
+
+    UpdateLogic logic;
+    logic.checkUpdate();
+
+    const bool needUpdate = logic.getNeedUpdate();
+    const bool networkOk = logic.isNetworkOk();
+    const QString latestVer = logic.getLatestVersion();
     const QJsonObject response = logic.getCheckResult();
     const int targetVersionId = response.value("version_id").toInt();
     const QString appId = logic.getAppId();
     const QString channel = logic.getChannel();
-
-    if (logic.lastStatusCode() == 401 || logic.lastStatusCode() == 403) {
-        progress.close();
-        const QJsonValue detail = response.value("detail");
-        const QString message = detail.isObject() ? detail.toObject().value("msg").toString() : detail.toString();
-        const QString displayMessage = message.isEmpty() ? "设备或 License 授权无效。" : message;
+    const QString launchToken = config.getValue("App", "launch_token");
+    const QString currentVersion = config.getValue("App", "current_version");
+
+    if (logic.lastStatusCode() == 401 || logic.lastStatusCode() == 403) {
+        progress.close();
+        const QJsonValue detail = response.value("detail");
+        const QString message = detail.isObject() ? detail.toObject().value("msg").toString() : detail.toString();
+        const QString displayMessage = message.isEmpty()
+            ? QCoreApplication::translate("Launcher", "The device or License authorization is invalid.")
+            : message;
         if (isLicenseError(displayMessage)) {
             clearDeviceCredential();
-            const QString newLicense = promptAndSaveLicense(QString("当前授权被服务端拒绝：%1").arg(displayMessage));
+            const QString newLicense = promptAndSaveLicense(QCoreApplication::translate("Launcher", "The current authorization was rejected by the server: %1").arg(displayMessage));
             if (!newLicense.isEmpty()) {
                 progress.close();
-                QMessageBox::information(nullptr, "License 已保存", "请重新启动 Launcher 完成设备授权和更新检查。");
+                QMessageBox::information(nullptr,
+                    QCoreApplication::translate("Launcher", "License Saved"),
+                    QCoreApplication::translate("Launcher", "Please restart Launcher to complete device authorization and update checking."));
             }
             return 0;
         }
-        QMessageBox::critical(nullptr, "授权被拒绝", displayMessage);
-        return -1;
-    }
-
-    const QString launchToken = config.getValue("App", "launch_token");
-    const QString currentVersion = config.getValue("App", "current_version");
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Authorization Rejected"),
+            displayMessage);
+        return -1;
+    }
+
     const auto configuredName = [&](const QString& key, const QString& fallback) {
-        const QString value = config.getValue("Runtime", key).trimmed();
-        return value.isEmpty() ? fallback : value;
+        return ConfigHelper::executableNameForCurrentPlatform(
+            config.getValue("Runtime", key), fallback);
     };
-    const QString mainExecutable = configuredName("main_executable", "MainApp.exe");
-    const QString updaterExecutable = configuredName("updater_executable", "Updater.exe");
+    const QString mainExecutable = configuredName("main_executable", "MainApp");
+    const QString updaterExecutable = configuredName("updater_executable", "Updater");
     const QString mainAppPath = QDir(appDir).filePath(mainExecutable);
     const QString updaterPath = QDir(appDir).filePath(updaterExecutable);
     const auto importOfflinePackage = [&]() {
-        const QString package = QFileDialog::getOpenFileName(nullptr, "选择离线更新包", QString(), "Marsco 离线更新包 (*.upd)");
-        return package.isEmpty() ? false : QProcess::startDetached(updaterPath, QStringList{QString("--offline-package=%1").arg(package)});
+        const QString package = QFileDialog::getOpenFileName(nullptr,
+            QCoreApplication::translate("Launcher", "Select Offline Update Package"),
+            QString(),
+            QCoreApplication::translate("Launcher", "Marsco offline update package (*.upd)"));
+        if (package.isEmpty())
+            return false;
+        if (!QFileInfo::exists(updaterPath)) {
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Updater Startup Failed"),
+                QCoreApplication::translate(
+                    "Launcher",
+                    "Cannot import the offline update package because the updater executable does not exist.\nUpdater: %1\nOffline package: %2")
+                    .arg(updaterPath, package));
+            return false;
+        }
+        if (!QProcess::startDetached(updaterPath, QStringList{QString("--offline-package=%1").arg(package)})) {
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Updater Startup Failed"),
+                QCoreApplication::translate(
+                    "Launcher",
+                    "Cannot start the updater for offline package import.\nUpdater: %1\nOffline package: %2\nCheck file permissions and dependent DLLs/shared libraries.")
+                    .arg(updaterPath, package));
+            return false;
+        }
+        return true;
     };
     const QString deviceId = config.getValue("Update", "device_id");
     if (QCoreApplication::arguments().contains("--import-offline")) {
         progress.close();
-        if (!importOfflinePackage()) QMessageBox::information(nullptr, "离线更新", "未选择离线更新包。");
+        if (!importOfflinePackage())
+            QMessageBox::information(nullptr,
+                QCoreApplication::translate("Launcher", "Offline Update"),
+                QCoreApplication::translate("Launcher", "No offline update package was selected."));
         return 0;
     }
-
+
+    QString mainStartupError;
     const auto startMainApp = [&]() {
+        // 只允许 Launcher 启动业务主程序：先生成一次性 ticket，再通过 --ticket-file 传给主程序。
+        // 业务主程序必须消费并校验 ticket，避免用户直接双击 SimCAE/MainApp 绕过更新和授权检查。
+        mainStartupError.clear();
+        if (!QFileInfo::exists(mainAppPath)) {
+            mainStartupError = QCoreApplication::translate(
+                "Launcher",
+                "Cannot start the main application because the executable file does not exist.\nExecutable: %1\nCheck main_executable and install_root in the generated client configuration.")
+                .arg(mainAppPath);
+            return false;
+        }
         QString ticketPath;
         QString ticketError;
         if (!TicketHelper::createTicket(logic.getAppId(), deviceId, currentVersion,
                                         launchToken, &ticketPath, &ticketError)) {
             qDebug() << "Cannot create launch ticket:" << ticketError;
+            mainStartupError = QCoreApplication::translate(
+                "Launcher",
+                "Cannot start the main application because the one-time launch ticket could not be created.\nExecutable: %1\nDetails: %2")
+                .arg(mainAppPath, ticketError);
             return false;
         }
         const bool started = QProcess::startDetached(mainAppPath,
             QStringList{QString("--ticket-file=%1").arg(ticketPath)});
-        if (!started) QFile::remove(ticketPath);
+        if (!started) {
+            QFile::remove(ticketPath);
+            mainStartupError = QCoreApplication::translate(
+                "Launcher",
+                "Cannot start the main application process.\nExecutable: %1\nTicket file: %2\nCheck file permissions, dependent DLLs/shared libraries, and whether the executable can run independently.")
+                .arg(mainAppPath, ticketPath);
+        }
         return started;
     };
-
-    progress.setLabelText("正在验证本地运行策略...");
-    QApplication::processEvents();
-
-    PolicyHelper policy(appDir);
-    if (!policy.loadPolicy("config/version_policy.dat") || !policy.isValid())
-    {
-        progress.close();
-        QMessageBox::critical(nullptr, "无法启动", QString("本地版本策略无效：%1").arg(policy.errorString()));
+
+    progress.setLabelText(QCoreApplication::translate("Launcher", "Verifying local runtime policy..."));
+    QApplication::processEvents();
+
+    PolicyHelper policy(appDir);
+    if (!policy.loadPolicy("config/version_policy.dat") || !policy.isValid())
+    {
+        progress.close();
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Cannot Start"),
+            QCoreApplication::translate("Launcher", "The local version policy is invalid: %1").arg(policy.errorString()));
         return -1;
-    }
-    if (policy.isExpired())
-    {
-        progress.close();
-        QMessageBox::critical(nullptr, "无法启动", "本地版本策略已过期，请连接网络或联系管理员。");
+    }
+    if (policy.isExpired())
+    {
+        progress.close();
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Cannot Start"),
+            QCoreApplication::translate("Launcher", "The local version policy has expired. Please connect to the network or contact the administrator."));
         return -1;
-    }
-    if ((!policy.allowRun() || !policy.isVersionAllowed(currentVersion)) && !(networkOk && needUpdate))
-    {
-        progress.close();
-        QMessageBox::critical(nullptr, "当前版本不可运行",
-            policy.message().isEmpty() ? QString("当前版本 %1 已被管理员停用。").arg(currentVersion)
+    }
+    if ((!policy.allowRun() || !policy.isVersionAllowed(currentVersion)) && !(networkOk && needUpdate))
+    {
+        progress.close();
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Current Version Cannot Run"),
+            policy.message().isEmpty() ? QCoreApplication::translate("Launcher", "The current version %1 has been disabled by the administrator.").arg(currentVersion)
                                        : policy.message());
+        return -1;
+    }
+
+    LocalStateHelper state(appDir);
+    if (!state.loadState())
+    {
+        progress.close();
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Cannot Start"),
+            QCoreApplication::translate("Launcher", "Cannot read the local state: %1").arg(state.errorString()));
         return -1;
-    }
-
-    LocalStateHelper state(appDir);
-    if (!state.loadState())
-    {
-        progress.close();
-        QMessageBox::critical(nullptr, "无法启动", QString("无法读取本地状态：%1").arg(state.errorString()));
+    }
+    if (state.isPolicySeqRolledBack(policy.policySeq()))
+    {
+        progress.close();
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Security Check Failed"),
+            QCoreApplication::translate("Launcher", "A version policy sequence rollback was detected. Startup has been blocked."));
         return -1;
-    }
-    if (state.isPolicySeqRolledBack(policy.policySeq()))
-    {
-        progress.close();
-        QMessageBox::critical(nullptr, "安全检查失败", "检测到版本策略序列回退，已阻止启动。");
-        return -1;
-    }
+    }
     if (state.isSystemTimeRewound())
     {
         progress.close();
-        QMessageBox::critical(nullptr, "安全检查失败", "检测到系统时间可能被回拨，已阻止启动。");
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Security Check Failed"),
+            QCoreApplication::translate("Launcher", "A possible system time rollback was detected. Startup has been blocked."));
         return -1;
     }
 
+    if (networkOk && policy.gitTagsEnabled())
+    {
+        progress.setLabelText(QCoreApplication::translate("Launcher", "Generating Git tag list..."));
+        QApplication::processEvents();
+        const QString tagsPath = QDir(appDir).filePath("tags.txt");
+        if (!logic.refreshGitTagsFile(tagsPath))
+        {
+            progress.close();
+            QMessageBox::warning(nullptr,
+                QCoreApplication::translate("Launcher", "Git Tag List Failed"),
+                QCoreApplication::translate("Launcher", "Cannot generate tags.txt, but startup will continue:\n%1").arg(logic.errorString()));
+            progress.show();
+            QApplication::processEvents();
+        }
+    }
+
     if (networkOk && needUpdate)
     {
         progress.close();
         const bool rollbackOperation = response.value("action").toString() == "rollback_allowed";
-        const QString dialogTitle = rollbackOperation ? "版本回退"
-            : (policy.forceUpdate() ? "必须更新" : "发现新版本");
+        const QString dialogTitle = rollbackOperation ? QCoreApplication::translate("Launcher", "Version Rollback")
+            : (policy.forceUpdate() ? QCoreApplication::translate("Launcher", "Update Required") : QCoreApplication::translate("Launcher", "New Version Available"));
         const QString prompt = policy.message().isEmpty()
-            ? QString(rollbackOperation ? "管理员提供了版本 %1 作为回退目标，是否现在降级？"
-                                        : "发现新版本 %1，是否现在更新？").arg(latestVer)
-            : policy.message() + QString("\n目标版本：%1").arg(latestVer);
-        bool accepted = true;
-        if (policy.forceUpdate()) {
-            QMessageBox::information(nullptr, dialogTitle, prompt);
-        } else {
-            accepted = QMessageBox::question(nullptr, dialogTitle, prompt,
-                QMessageBox::Yes | QMessageBox::No, QMessageBox::No) == QMessageBox::Yes;
-        }
+            ? (rollbackOperation
+                ? QCoreApplication::translate("Launcher", "The administrator provided version %1 as the rollback target. Downgrade now?").arg(latestVer)
+                : QCoreApplication::translate("Launcher", "Version %1 is available. Update now?").arg(latestVer))
+            : policy.message() + QCoreApplication::translate("Launcher", "\nTarget version: %1").arg(latestVer);
+        bool accepted = true;
+        if (policy.forceUpdate()) {
+            QMessageBox::information(nullptr, dialogTitle, prompt);
+        } else {
+            accepted = QMessageBox::question(nullptr, dialogTitle, prompt,
+                QMessageBox::Yes | QMessageBox::No, QMessageBox::No) == QMessageBox::Yes;
+        }
         if (!accepted) {
             if (!startMainApp()) {
-                QMessageBox::critical(nullptr, "启动失败", QString("无法启动主程序：%1").arg(mainAppPath));
+                QMessageBox::critical(nullptr,
+                    QCoreApplication::translate("Launcher", "Startup Failed"),
+                    mainStartupError.isEmpty()
+                        ? QCoreApplication::translate("Launcher", "Cannot start the main application: %1").arg(mainAppPath)
+                        : mainStartupError);
                 return -1;
             }
             return 0;
         }
         const QStringList updaterArgs{appId, channel, latestVer, QString::number(targetVersionId)};
+        if (!QFileInfo::exists(updaterPath))
+        {
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Updater Startup Failed"),
+                QCoreApplication::translate(
+                    "Launcher",
+                    "Cannot start the updater because the executable file does not exist.\nExecutable: %1\nCheck updater_executable and install_root in the generated client configuration.")
+                    .arg(updaterPath));
+            return -1;
+        }
         if (!QProcess::startDetached(updaterPath, updaterArgs))
         {
-            QMessageBox::critical(nullptr, "更新器启动失败", QString("无法启动更新器：%1").arg(updaterPath));
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Updater Startup Failed"),
+                QCoreApplication::translate(
+                    "Launcher",
+                    "Cannot start the updater process.\nExecutable: %1\nArguments: %2\nCheck file permissions, dependent DLLs/shared libraries, and whether the updater can run independently.")
+                    .arg(updaterPath, updaterArgs.join(QStringLiteral(" "))));
             return -1;
         }
         return 0;
     }
 
-    if (!networkOk) {
-        progress.close();
-        if (QMessageBox::question(nullptr, "服务器不可用", "当前无法连接更新服务器。是否导入离线更新包？",
-                                  QMessageBox::Yes | QMessageBox::No, QMessageBox::No) == QMessageBox::Yes) {
-            if (!importOfflinePackage()) QMessageBox::information(nullptr, "离线更新", "未选择离线更新包或无法启动更新器。");
-            return 0;
+    if (networkOk && !needUpdate && targetVersionId > 0 && latestVer == currentVersion)
+    {
+        progress.setLabelText(QCoreApplication::translate("Launcher", "Caching signed version manifest..."));
+        QApplication::processEvents();
+        const QString manifestCacheDir = QDir(ConfigHelper::instance().updateRoot()).filePath("manifest_cache");
+        if (!logic.cacheManifest(appId, channel, currentVersion, targetVersionId, manifestCacheDir))
+        {
+            progress.close();
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Launcher", "Manifest Cache Failed"),
+                QCoreApplication::translate("Launcher", "Cannot cache the signed manifest for the current version: %1").arg(logic.errorString()));
+            return -1;
         }
-        progress.show();
     }
 
+    if (!networkOk) {
+        progress.close();
+        if (QMessageBox::question(nullptr,
+                                  QCoreApplication::translate("Launcher", "Server Unavailable"),
+                                  QCoreApplication::translate("Launcher", "Cannot connect to the update server. Import an offline update package?"),
+                                  QMessageBox::Yes | QMessageBox::No, QMessageBox::No) == QMessageBox::Yes) {
+            if (!importOfflinePackage())
+                QMessageBox::information(nullptr,
+                    QCoreApplication::translate("Launcher", "Offline Update"),
+                    QCoreApplication::translate("Launcher", "No offline update package was selected, or the updater could not be started."));
+            return 0;
+        }
+        progress.show();
+    }
+
     if (!networkOk && !policy.isOfflineAllowed())
     {
         progress.close();
-        QMessageBox::critical(nullptr, "网络不可用", "无法连接更新服务器，且当前策略不允许离线启动。");
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Network Unavailable"),
+            QCoreApplication::translate("Launcher", "Cannot connect to the update server, and the current policy does not allow offline startup."));
         return -1;
     }
 
-    progress.setLabelText(networkOk ? "当前已是最新版本，正在启动..." : "当前处于离线模式，正在启动...");
-    QApplication::processEvents();
+    progress.setLabelText(networkOk
+        ? QCoreApplication::translate("Launcher", "The application is up to date. Starting...")
+        : QCoreApplication::translate("Launcher", "Offline mode is active. Starting..."));
+    QApplication::processEvents();
     if (!startMainApp())
     {
         progress.close();
-        QMessageBox::critical(nullptr, "启动失败", QString("无法启动主程序：%1").arg(mainAppPath));
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Launcher", "Startup Failed"),
+            mainStartupError.isEmpty()
+                ? QCoreApplication::translate("Launcher", "Cannot start the main application: %1").arg(mainAppPath)
+                : mainStartupError);
         return -1;
     }
-    progress.close();
-    return 0;
-}
+    progress.close();
+    return 0;
+}

MainApp/CMakeLists.txt

@@ -1,21 +1,23 @@
-project(MainApp)
-add_executable(MainApp 
-    main.cpp
-    MainWindow.h
-    MainWindow.cpp
-    ../Common/ConfigHelper.h
-)
-target_include_directories(MainApp 
-    PUBLIC ${CMAKE_SOURCE_DIR}/Common
-    PRIVATE ${OPENSSL_INC}
-)
-target_link_libraries(MainApp PRIVATE Common Qt5::Core Qt5::Gui Qt5::Widgets)
-
-if(WIN32)
-    get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)
-    get_filename_component(QT_BIN_PATH "${QT_WINDEPLOYQT_EXE}" DIRECTORY)
-    set(WINDEPLOYQT "${QT_BIN_PATH}/windeployqt.exe")
-    add_custom_command(TARGET MainApp POST_BUILD
+project(MainApp)
+add_executable(MainApp
+    main.cpp
+    MainWindow.h
+	    MainWindow.cpp
+	    ../Common/ConfigHelper.h
+	    ${CMAKE_SOURCE_DIR}/i18n/update-client.qrc
+	    ${CMAKE_SOURCE_DIR}/config/server_config.qrc
+	)
+target_include_directories(MainApp
+    PUBLIC ${CMAKE_SOURCE_DIR}/Common
+    PRIVATE ${OPENSSL_INC}
+)
+target_link_libraries(MainApp PRIVATE Common Qt5::Core Qt5::Gui Qt5::Widgets)
+
+if(WIN32)
+    get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)
+    get_filename_component(QT_BIN_PATH "${QT_WINDEPLOYQT_EXE}" DIRECTORY)
+    set(WINDEPLOYQT "${QT_BIN_PATH}/windeployqt.exe")
+    add_custom_command(TARGET MainApp POST_BUILD
         COMMAND ${WINDEPLOYQT} $<IF:$<CONFIG:Debug>,--debug,--release> $<TARGET_FILE:MainApp>
-    )
+    )
 endif()

MainApp/main.cpp

@@ -1,130 +1,135 @@
-#include <Windows.h>
-#include <QApplication>
-#include <QDebug>
-#include <QTextCodec>
-#include <QMessageBox>
-#include <QDir>
-#include <QFileInfo>
-#include <QSaveFile>
-#include "MainWindow.h"
-#include "../Common/ConfigHelper.h"
-#include "../Common/PolicyHelper.h"
-#include "../Common/LocalStateHelper.h"
-#include "../Common/TicketHelper.h"
-#include "../Common/IntegrityHelper.h"
-#include "../Common/DeviceIdentityHelper.h"
-
-int main(int argc, char* argv[])
-{
-    SetConsoleOutputCP(936);
-    QTextCodec::setCodecForLocale(QTextCodec::codecForName("GBK"));
-    
-    QApplication a(argc, argv);
-
-    qDebug() << Qt::endl << "entered main app" << Qt::endl;
-
+#include <QApplication>
+#include <QDebug>
+#include <QMessageBox>
+#include <QDir>
+#include <QFileInfo>
+#include <QSaveFile>
+#include <QTranslator>
+#include "MainWindow.h"
+#include "../Common/ConfigHelper.h"
+#include "../Common/PolicyHelper.h"
+#include "../Common/LocalStateHelper.h"
+#include "../Common/TicketHelper.h"
+#include "../Common/IntegrityHelper.h"
+#include "../Common/DeviceIdentityHelper.h"
+
+int main(int argc, char* argv[])
+{
+    QApplication a(argc, argv);
+    QTranslator translator;
+    if (translator.load(":/i18n/update-client_zh_CN.qm"))
+        a.installTranslator(&translator);
+
+    const int elevatedWriteExitCode = ConfigHelper::runElevatedWriteCommandIfRequested();
+    if (elevatedWriteExitCode >= 0)
+        return elevatedWriteExitCode;
+
+    qDebug() << Qt::endl << "entered main app" << Qt::endl;
+
     ConfigHelper& config = ConfigHelper::instance();
     QString launcherExecutable = config.getValue("Runtime", "launcher_executable").trimmed();
-    if (launcherExecutable.isEmpty()) launcherExecutable = "Launcher.exe";
-    QString ticketFilePath;
-    QString healthFilePath;
-    for (int i = 1; i < argc; ++i)
-    {
-        const QString arg(argv[i]);
-        if (arg.startsWith("--ticket-file="))
-            ticketFilePath = arg.mid(QString("--ticket-file=").size());
-        else if (arg.startsWith("--health-file="))
-            healthFilePath = arg.mid(QString("--health-file=").size());
-    }
-
-    QString ticketError;
-    if (ticketFilePath.isEmpty()
-        || !TicketHelper::consumeAndVerify(ticketFilePath,
-            config.getValue("App", "app_id"), config.getValue("Update", "device_id"),
-            config.getValue("App", "current_version"), config.getValue("App", "launch_token"),
-            &ticketError))
-    {
-        QMessageBox::critical(nullptr, "Startup Restriction",
-            QString("Invalid or missing one-time launch ticket: %1\nPlease use %2.")
-                .arg(ticketError, launcherExecutable));
-        return -1;
-    }
-
-    QString appDir = QApplication::applicationDirPath();
-    const QString installRoot = config.installRoot();
-    DeviceIdentityHelper identity(appDir);
-    if (!identity.verifyLocal(config.getValue("App", "app_id"), config.getValue("App", "channel")))
-    {
-        QMessageBox::critical(nullptr, "License Error", QString("Local license invalid: %1").arg(identity.errorString()));
-        return -1;
-    }
-    PolicyHelper policy(appDir);
-    if (!policy.loadPolicy("config/version_policy.dat") || !policy.isValid())
-    {
-        QMessageBox::critical(nullptr, "Policy Error", QString("Local policy invalid: %1").arg(policy.errorString()));
-        return -1;
-    }
-
-    if (policy.isExpired())
-    {
-        QMessageBox::critical(nullptr, "Policy Error", "Policy expired, cannot start the application.");
-        return -1;
-    }
-
-    LocalStateHelper state(appDir);
-    if (!state.loadState())
-    {
-        QMessageBox::critical(nullptr, "State Error", QString("Cannot load local state: %1").arg(state.errorString()));
-        return -1;
-    }
-
-    if (state.isPolicySeqRolledBack(policy.policySeq()))
-    {
-        QMessageBox::critical(nullptr, "Policy Error", "Detected policy sequence rollback, startup blocked.");
-        return -1;
-    }
-
-    if (state.isSystemTimeRewound())
-    {
-        QMessageBox::critical(nullptr, "Policy Error", "System time appears to be rewound, startup blocked.");
-        return -1;
-    }
-
-    IntegrityHelper integrity(installRoot);
-    if (!integrity.verifyInstalledVersion(
-            config.getValue("App", "app_id"), config.getValue("App", "channel"),
-            config.getValue("App", "current_version")))
+    launcherExecutable = ConfigHelper::executableNameForCurrentPlatform(launcherExecutable, "Launcher");
+    QString ticketFilePath;
+    QString healthFilePath;
+    for (int i = 1; i < argc; ++i)
+    {
+        const QString arg(argv[i]);
+        if (arg.startsWith("--ticket-file="))
+            ticketFilePath = arg.mid(QString("--ticket-file=").size());
+        else if (arg.startsWith("--health-file="))
+            healthFilePath = arg.mid(QString("--health-file=").size());
+    }
+
+    QString ticketError;
+    if (ticketFilePath.isEmpty()
+        || !TicketHelper::consumeAndVerify(ticketFilePath,
+            config.getValue("App", "app_id"), config.getValue("Update", "device_id"),
+            config.getValue("App", "current_version"), config.getValue("App", "launch_token"),
+            &ticketError))
+    {
+        QMessageBox::critical(nullptr, "Startup Restriction",
+            QString("Invalid or missing one-time launch ticket: %1\nPlease use %2.")
+                .arg(ticketError, launcherExecutable));
+        return -1;
+    }
+
+    QString appDir = QApplication::applicationDirPath();
+    const QString installRoot = config.installRoot();
+    DeviceIdentityHelper identity(appDir);
+    if (!identity.verifyLocal(config.getValue("App", "app_id"), config.getValue("App", "channel")))
+    {
+        QMessageBox::critical(nullptr, "License Error", QString("Local license invalid: %1").arg(identity.errorString()));
+        return -1;
+    }
+    PolicyHelper policy(appDir);
+    if (!policy.loadPolicy("config/version_policy.dat") || !policy.isValid())
+    {
+        QMessageBox::critical(nullptr, "Policy Error", QString("Local policy invalid: %1").arg(policy.errorString()));
+        return -1;
+    }
+
+    if (policy.isExpired())
+    {
+        QMessageBox::critical(nullptr, "Policy Error", "Policy expired, cannot start the application.");
+        return -1;
+    }
+
+    LocalStateHelper state(appDir);
+    if (!state.loadState())
+    {
+        QMessageBox::critical(nullptr, "State Error", QString("Cannot load local state: %1").arg(state.errorString()));
+        return -1;
+    }
+
+    if (state.isPolicySeqRolledBack(policy.policySeq()))
+    {
+        QMessageBox::critical(nullptr, "Policy Error", "Detected policy sequence rollback, startup blocked.");
+        return -1;
+    }
+
+    if (state.isSystemTimeRewound())
+    {
+        QMessageBox::critical(nullptr, "Policy Error", "System time appears to be rewound, startup blocked.");
+        return -1;
+    }
+
+    IntegrityHelper integrity(installRoot);
+    if (!integrity.verifyInstalledVersion(
+            config.getValue("App", "app_id"), config.getValue("App", "channel"),
+            config.getValue("App", "current_version")))
     {
         QMessageBox::critical(nullptr, "Integrity Check Failed",
-            QString("Application files failed signed Manifest verification:\n%1")
+            QString("Startup blocked because the installed files failed local signed Manifest verification.\n"
+                    "This is not a download check; it means the current installation directory does not match the signed Manifest cache for this version.\n\n"
+                    "Details:\n%1")
                 .arg(integrity.errorString()));
         return -1;
     }
-
-    MainWindow w;
-    w.show();
-
-    state.updateAfterSuccessfulRun(ConfigHelper::instance().getValue("App", "current_version"), policy.policySeq());
-    if (!state.saveState())
-    {
-        QMessageBox::critical(nullptr, "State Error", QString("Cannot save local state: %1").arg(state.errorString()));
-        return -1;
-    }
-
-    if (!healthFilePath.isEmpty())
-    {
-        QDir().mkpath(QFileInfo(healthFilePath).path());
-        QSaveFile healthFile(healthFilePath);
-        const QByteArray healthy("ok\n");
-        if (!healthFile.open(QIODevice::WriteOnly)
-            || healthFile.write(healthy) != healthy.size()
-            || !healthFile.commit())
-        {
-            QMessageBox::critical(nullptr, "Startup Error", "Cannot write update health confirmation file.");
-            return -1;
-        }
-    }
-
-    qDebug() << "Main program MainApp is running normally";
-    return a.exec();
-}
+
+    MainWindow w;
+    w.show();
+
+    state.updateAfterSuccessfulRun(ConfigHelper::instance().getValue("App", "current_version"), policy.policySeq());
+    if (!state.saveState())
+    {
+        QMessageBox::critical(nullptr, "State Error", QString("Cannot save local state: %1").arg(state.errorString()));
+        return -1;
+    }
+
+    if (!healthFilePath.isEmpty())
+    {
+        QDir().mkpath(QFileInfo(healthFilePath).path());
+        QSaveFile healthFile(healthFilePath);
+        const QByteArray healthy("ok\n");
+        if (!healthFile.open(QIODevice::WriteOnly)
+            || healthFile.write(healthy) != healthy.size()
+            || !healthFile.commit())
+        {
+            QMessageBox::critical(nullptr, "Startup Error", "Cannot write update health confirmation file.");
+            return -1;
+        }
+    }
+
+    qDebug() << "Main program MainApp is running normally";
+    return a.exec();
+}

READMe.txt

@@ -1,27 +0,0 @@
-客户端配置说明
-==============
-
-统一从程序目录下的 config/app_config.json 读取配置。
-首次运行时如果该文件不存在且发现旧 client.ini，会自动迁移。
-
-接入新软件时通常需要修改：
-
-1. app_id、app_name、channel、current_version。
-2. api_base_url、client_token、license_key、launch_token。
-3. main_executable：团队业务主程序文件名。
-4. launcher_executable、updater_executable、bootstrap_executable。
-5. health_check_timeout_ms：升级后等待业务程序健康确认的毫秒数，最小 1000。
-
-完整格式参考 config/app_config.example.json。
-运行时生成的 app_config.json、client_identity.dat、local_state.json 等文件不得打入通用 SDK 模板。
-
-Windows 发布打包：
-
-1. 使用 Release 配置编译全部客户端程序。
-2. 先完成当前版本在线校验，确认 out/bin/update/manifest_cache 中存在对应的签名 Manifest。
-3. 准备一份实际 app_config.json，确认其中包含正确的 License Key、当前版本和业务程序名。
-4. 在 PowerShell 执行：
-   powershell -ExecutionPolicy Bypass -File .\package-client.ps1 -ConfigFile .\config\app_config.json
-5. 输出位于 dist/UpdateClient 和 dist/UpdateClient.zip。
-
-脚本会拒绝 Debug DLL、PDB、嵌套重复主程序和缺少签名 Manifest 的发布源目录。

SDK_README.md

@@ -1,188 +0,0 @@
-# UpdateClientSDK 接入说明
-
-这个 SDK 是“独立更新器 SDK / 升级运行时 SDK”。它不是传统的 `include + lib` 形态，而是把自动升级能力作为一组独立程序交给业务软件使用。
-
-SDK 核心程序：
-
-- `Launcher.exe`：用户入口。检查版本、验证策略，决定启动业务主程序或启动 Updater。
-- `Updater.exe`：下载、校验、备份、安装、健康确认、提交或回滚。
-- `Bootstrap.exe`：替换运行中可能被占用的 EXE/DLL。
-- `config/app_config.json`：接入方配置。
-- `config/manifest_public_key.pem`：验证服务端签名用的公钥。
-
-## 接入方需要做什么
-
-假设接入的软件叫 `YourApp.exe`。
-
-1. 在服务端管理后台创建应用，例如 `app_id=your_app_id`。
-2. 创建或确认渠道，例如 `stable`。
-3. 创建 License，把生成的 `license_key` 填到客户端配置。
-4. 把业务软件完整安装目录作为发布根目录，例如 `SimCAE\`，其中主程序位于 `bin\SimCAE.exe`。
-5. 把 SDK 的 `Launcher.exe`、`Updater.exe`、`Bootstrap.exe` 放到 `SimCAE\bin\` 目录，和 `SimCAE.exe` 同级。不要覆盖 SimCAE 自带的 `Qt5*.dll` 和 Qt 插件目录。
-6. 把 `config/app_config.example.json` 复制成 `SimCAE\bin\config\app_config.json` 并修改字段。
-7. 用户入口改成 `Launcher.exe`，不要直接双击业务主程序。
-8. 在管理后台发布新版本时，选择包含业务主程序和 SDK 运行时的干净 Release 根目录。
-
-## 安装目录写权限要求
-
-当前 SDK 会在 `Launcher.exe` 所在目录下写入运行时状态文件。SDK 放在 `SimCAE\bin` 时，这些文件实际位于 `SimCAE\bin` 下，例如：
-
-```text
-config/app_config.json
-config/client_identity.dat
-config/local_state.json
-config/version_policy.dat
-update/
-update_temp/
-```
-
-所以联调和普通运行时，`Launcher.exe` 所在目录必须允许当前 Windows 用户写入。不要直接把联调目录放在 `C:\Program Files\...` 后用普通用户启动；该目录默认禁止普通程序写文件，会导致首次启动报错，例如 `cannot save installation id`。
-
-推荐联调目录：
-
-```text
-D:\SimCAE_Release\
-C:\Users\<你的用户名>\Desktop\SimCAE_Release\
-```
-
-如果最终产品必须安装到 `C:\Program Files\SimCAE\bin`，需要额外设计管理员提权、Windows 服务，或把运行时状态迁移到 `ProgramData` / `AppData`。当前交付版本默认按“安装目录可写”的模式工作。
-
-## SimCAE 目录结构建议
-
-SimCAE 当前安装目录是根目录下有 `bin/`、`Licenses/`、`installerResources/` 等子目录。SDK 推荐放在 `bin/` 目录，和 `SimCAE.exe` 同级；后台发布时仍选择整个安装根目录：
-
-```text
-SimCAE/
-  bin/
-    Launcher.exe
-    Updater.exe
-    Bootstrap.exe
-    SimCAE.exe
-    config/
-      app_config.json
-      manifest_public_key.pem
-    update/
-      manifest_cache/
-    Qt5Core.dll
-    ...
-  Licenses/
-  installerResources/
-  maintenancetool.exe
-```
-
-这种模式下，后台“发布新版本”时选择整个 `SimCAE/` 目录，服务端会检查 `bin/SimCAE.exe` 是否存在，并把整个安装结构写入 Manifest。客户端配置里 `install_root` 填 `..`，表示被更新的安装根目录是 `bin` 的上一级；升级事务、下载缓存和 Manifest 缓存仍放在 `SimCAE\bin\update`。
-
-注意：SimCAE 自己已经带有 Qt 运行库。SDK 的 Launcher/Updater 应使用和 SimCAE 兼容的 Qt 编译，并复用 SimCAE 的 `Qt5*.dll`、`platforms/`、`imageformats/` 等目录。不要把另一套 Qt DLL 覆盖到 `SimCAE\bin`，否则会出现“无法定位程序输入点”一类错误。
-
-## app_config.json 关键字段
-
-```json
-{
-  "app_id": "simcae",
-  "app_name": "SimCAE",
-  "channel": "stable",
-  "current_version": "1.0.0",
-  "client_protocol": "3",
-  "launch_token": "SimCAE_Launch_Token_2026_ChangeMe_32Bytes",
-  "license_key": "",
-  "api_base_url": "http://YOUR_SERVER_IP:8000",
-  "client_token": "SimCAEClientToken2026",
-  "request_timeout_ms": "5000",
-  "temp_folder": "update_temp",
-  "device_id": "",
-  "install_root": "..",
-  "main_executable": "SimCAE.exe",
-  "launcher_executable": "Launcher.exe",
-  "updater_executable": "Updater.exe",
-  "bootstrap_executable": "Bootstrap.exe",
-  "health_check_timeout_ms": "15000",
-  "platform": "windows",
-  "arch": "x64"
-}
-```
-
-字段说明：
-
-- `app_id`：服务端应用 ID，默认填 `simcae`；如果后台创建了别的 App ID，这里同步修改。
-- `channel`：发布渠道，例如 `stable`、`beta`、`dev`。
-- `current_version`：当前客户端初始版本。
-- `client_protocol`：客户端协议号，当前建议为 `3`。
-- `api_base_url`：服务端 API 地址，例如 `http://192.168.229.128:8000`；服务器 IP 无法提前知道，所以这里需要按现场地址修改。
-- `client_token`：服务端 `.env` 中的 `CLIENT_API_TOKEN`，默认交付包已填 `SimCAEClientToken2026`。
-- `license_key`：管理后台创建 License 后返回的密钥；模板里先留空，创建授权后再填。
-- `launch_token`：本机启动票据 HMAC 密钥，模板已给默认值，可试跑；正式交付建议改成你自己的 32 字符以上随机字符串。
-- `install_root`：安装根目录相对 `Launcher.exe` 所在目录的位置。SDK 放在 `bin` 时填 `..`。
-- `main_executable`：业务主程序相对 `Launcher.exe` 所在目录的路径，SimCAE 默认填 `SimCAE.exe`。
-- `health_check_timeout_ms`：升级后等待业务程序写健康标记的时间。
-
-## 业务主程序需要配合什么
-
-当前安全模式下，业务主程序需要配合两件事：
-
-1. 接收 `--ticket-file=<path>` 参数，验证并消费一次性启动票据。
-2. 如果收到 `--health-file=<path>` 参数，启动成功后向该路径写入 `ok\n`，让 Updater 确认新版本可用。
-
-当前仓库里的 `client/MainApp/main.cpp` 是接入示例，已经实现了：
-
-- 启动票据校验。
-- 本地 License/设备身份校验。
-- 本地策略校验。
-- Manifest 完整性校验。
-- 健康标记写入。
-
-如果第三方业务程序暂时不想改代码，可以先使用当前 `MainApp.exe` 作为 Demo 验证 SDK 包；真正接入时建议把这些启动检查逻辑移植到业务主程序。
-
-## 如何生成 SDK 包
-
-在 Windows PowerShell 中执行：
-
-```powershell
-cd client
-.\package-sdk.ps1 `
-  -SourceDir .\out\bin `
-  -OutputDir .\dist\UpdateClientSDK `
-  -ZipFile .\dist\UpdateClientSDK.zip `
-  -SdkVersion 0.1.0
-```
-
-默认生成的 SDK 不包含 Qt 运行库，避免覆盖业务软件自带的 Qt。只有在接入的软件本身不带 Qt，且你确认要让 SDK 自带一套 Qt 运行库时，才额外添加 `-IncludeQtRuntime`。
-
-生成结果：
-
-```text
-dist/UpdateClientSDK/
-  SimCAE自动升级SDK接入说明_v0.1.docx
-  sdk_manifest.json
-  bin/
-  config/
-    app_config.json
-    manifest_public_key.pem
-  scripts/
-```
-
-把 `UpdateClientSDK.zip` 发给接入方即可。
-
-## 如何生成某个产品的最终客户端包
-
-SDK 是给开发者接入用的，最终给用户安装/分发时，可以使用：
-
-```powershell
-cd client
-.\package-client.ps1 `
-  -SourceDir .\out\bin `
-  -ConfigFile .\config\app_config.json `
-  -OutputDir .\dist\UpdateClient `
-  -ZipFile .\dist\UpdateClient.zip
-```
-
-`package-client.ps1` 会检查配置和必需文件，并生成具体产品的客户端包。
-
-## 常见错误
-
-1. 直接启动业务主程序提示 ticket 错误：应从 `Launcher.exe` 启动。
-2. 首次启动提示 `cannot save installation id`：当前目录不可写，常见于 `C:\Program Files\...`；请换到可写目录联调，或用管理员权限/提权方案。
-3. 首次启动设备登记失败：检查 `api_base_url`、`client_token`、`license_key`、服务端 License 状态。
-4. 策略或 Manifest 验签失败：检查 `config/manifest_public_key.pem` 是否和服务端私钥匹配。
-5. 升级后回滚：检查业务程序是否在 `health_check_timeout_ms` 内写入健康标记。
-6. 发布失败提示主程序不在根目录：选择发布目录时要选择业务主程序所在目录，而不是上层或下层目录。
-7. 启动时提示 `无法定位程序输入点 ... Qt5*.dll`：通常是 Qt DLL 被不同版本覆盖或混用。恢复业务软件原始 Qt DLL，并重新打包 SDK；SimCAE 场景下不要使用 `-IncludeQtRuntime`。

Updater/CMakeLists.txt

@@ -1,41 +1,42 @@
-# 强制所有编译、设计时生成均使用x64，禁止Win32
-set(CMAKE_GENERATOR_PLATFORM x64 CACHE STRING "强制x64平台，禁用Win32")
-set(CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCH x64)
-# 关闭VS自动Win32设计时预生成
-set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD OFF)
-# 清除32位Strawberry Perl路径干扰
-list(REMOVE_ITEM CMAKE_INCLUDE_PATH "D:/softwaresInstallDir/strawberry-perl-5.22.1.3-32bit/c/include")
-list(REMOVE_ITEM CMAKE_LIBRARY_PATH "D:/softwaresInstallDir/strawberry-perl-5.22.1.3-32bit/c/lib")
+if(WIN32 AND MSVC)
+    # 强制所有编译、设计时生成均使用x64，禁止Win32
+    set(CMAKE_GENERATOR_PLATFORM x64 CACHE STRING "强制x64平台，禁用Win32")
+    set(CMAKE_VS_PLATFORM_TOOLSET_HOST_ARCH x64)
+    # 关闭VS自动Win32设计时预生成
+    set(CMAKE_VS_INCLUDE_INSTALL_TO_DEFAULT_BUILD OFF)
+endif()
 
 project(Updater)
 set(SRC
     main.cpp
     UpdaterLogic.h
     UpdaterLogic.cpp
-    UpdateTransaction.h
-    UpdateTransaction.cpp
-)
-add_executable(Updater ${SRC})
-
-if(WIN32)
-    set_target_properties(Updater PROPERTIES WIN32_EXECUTABLE TRUE)
-endif()
-
-# 关键：给Updater自身添加OpenSSL头文件目录，解决#include openssl/*找不到
-target_include_directories(Updater PRIVATE ${OPENSSL_INC})
-
-# 仅链接Common和Qt，OpenSSL库由Common INTERFACE自动传递
-target_link_libraries(Updater PRIVATE
-    Common
-    Qt5::Core Qt5::Network Qt5::Gui Qt5::Widgets
-)
-
-# Qt部署脚本
-if(WIN32)
-    get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)
-    get_filename_component(QT_BIN_PATH "${QT_WINDEPLOYQT_EXE}" DIRECTORY)
-    set(WINDEPLOYQT "${QT_BIN_PATH}/windeployqt.exe")
-    add_custom_command(TARGET Updater POST_BUILD
-        COMMAND ${WINDEPLOYQT} $<IF:$<CONFIG:Debug>,--debug,--release> $<TARGET_FILE:Updater>
-    )
-endif()
+	    UpdateTransaction.h
+	    UpdateTransaction.cpp
+	    ${CMAKE_SOURCE_DIR}/i18n/update-client.qrc
+	    ${CMAKE_SOURCE_DIR}/config/server_config.qrc
+	)
+add_executable(Updater ${SRC})
+
+if(WIN32)
+    set_target_properties(Updater PROPERTIES WIN32_EXECUTABLE TRUE)
+endif()
+
+# 关键：给Updater自身添加OpenSSL头文件目录，解决#include openssl/*找不到
+target_include_directories(Updater PRIVATE ${OPENSSL_INC})
+
+# 仅链接Common和Qt，OpenSSL库由Common INTERFACE自动传递
+target_link_libraries(Updater PRIVATE
+    Common
+    Qt5::Core Qt5::Network Qt5::Gui Qt5::Widgets
+)
+
+# Qt部署脚本
+if(WIN32)
+    get_target_property(QT_WINDEPLOYQT_EXE Qt5::qmake IMPORTED_LOCATION)
+    get_filename_component(QT_BIN_PATH "${QT_WINDEPLOYQT_EXE}" DIRECTORY)
+    set(WINDEPLOYQT "${QT_BIN_PATH}/windeployqt.exe")
+    add_custom_command(TARGET Updater POST_BUILD
+        COMMAND ${WINDEPLOYQT} $<IF:$<CONFIG:Debug>,--debug,--release> $<TARGET_FILE:Updater>
+    )
+endif()

Updater/UpdateTransaction.cpp

@@ -1,274 +1,281 @@
-#include "UpdateTransaction.h"
-#include <QDateTime>
-#include <QDir>
-#include <QFile>
-#include <QFileInfo>
-#include <QJsonArray>
-#include <QJsonDocument>
-#include <QSaveFile>
-#include <QSet>
-#include <QUuid>
-
-UpdateTransaction::UpdateTransaction(const QString& installDir, const QString& updateDir, const QString& fromVersion,
-                                     const QString& toVersion, int manifestId)
-    : m_installDir(QDir::cleanPath(installDir)),
-      m_updateDir(QDir::cleanPath(updateDir.isEmpty() ? QDir(installDir).filePath("update") : updateDir)),
-      m_stateFile(QDir(m_updateDir).filePath("upgrade_state.json")),
-      m_transactionId(QUuid::createUuid().toString(QUuid::WithoutBraces)),
-      m_fromVersion(fromVersion), m_toVersion(toVersion), m_manifestId(manifestId)
-{
-    m_stagingDir = QDir(m_updateDir).filePath("staging/" + m_transactionId);
-    m_backupDir = QDir(m_updateDir).filePath("backup/" + m_transactionId);
-}
-
-bool UpdateTransaction::safeRelativePath(const QString& path)
-{
-    const QString clean = QDir::cleanPath(QDir::fromNativeSeparators(path));
-    return !clean.isEmpty() && !QDir::isAbsolutePath(clean) && clean != ".."
-        && !clean.startsWith("../") && !clean.contains(":");
-}
-
-bool UpdateTransaction::copyOverwrite(const QString& source, const QString& destination) const
-{
-    if (!QDir().mkpath(QFileInfo(destination).path())) return false;
-    if (QFile::exists(destination) && !QFile::remove(destination)) return false;
-    return QFile::copy(source, destination);
-}
-
+#include "UpdateTransaction.h"
+#include <QDateTime>
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QSaveFile>
+#include <QSet>
+#include <QUuid>
+
+UpdateTransaction::UpdateTransaction(const QString& installDir, const QString& updateDir, const QString& fromVersion,
+                                     const QString& toVersion, int manifestId)
+    : m_installDir(QDir::cleanPath(installDir)),
+      m_updateDir(QDir::cleanPath(updateDir.isEmpty() ? QDir(installDir).filePath("update") : updateDir)),
+      m_stateFile(QDir(m_updateDir).filePath("upgrade_state.json")),
+      m_transactionId(QUuid::createUuid().toString(QUuid::WithoutBraces)),
+      m_fromVersion(fromVersion), m_toVersion(toVersion), m_manifestId(manifestId)
+{
+    m_stagingDir = QDir(m_updateDir).filePath("staging/" + m_transactionId);
+    m_backupDir = QDir(m_updateDir).filePath("backup/" + m_transactionId);
+}
+
+bool UpdateTransaction::safeRelativePath(const QString& path)
+{
+    const QString clean = QDir::cleanPath(QDir::fromNativeSeparators(path));
+    return !clean.isEmpty() && !QDir::isAbsolutePath(clean) && clean != ".."
+        && !clean.startsWith("../") && !clean.contains(":");
+}
+
+bool UpdateTransaction::copyOverwrite(const QString& source, const QString& destination) const
+{
+    if (!QDir().mkpath(QFileInfo(destination).path())) return false;
+    if (QFile::exists(destination) && !QFile::remove(destination)) return false;
+    return QFile::copy(source, destination);
+}
+
 bool UpdateTransaction::writeState(const QString& status, const QString& errorCode, const QString& message)
 {
+    // upgrade_state.json 是升级事务的“黑匣子”。
+    // 如果替换文件时断电或崩溃，Bootstrap/Updater 会根据这里的状态继续提交或回滚。
     m_state["transaction_id"] = m_transactionId;
-    m_state["from_version"] = m_fromVersion;
-    m_state["to_version"] = m_toVersion;
-    m_state["status"] = status;
-    m_state["manifest_id"] = m_manifestId;
-    m_state["updated_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
-    m_state["staging_dir"] = m_stagingDir;
-    m_state["backup_dir"] = m_backupDir;
-    m_state["error_code"] = errorCode;
-    m_state["message"] = message;
-    QJsonArray paths;
-    for (const QString& path : m_changedPaths) paths.append(path);
-    m_state["changed_paths"] = paths;
-    QJsonArray obsoletePaths;
-    for (const QString& path : m_obsoletePaths) obsoletePaths.append(path);
-    m_state["obsolete_paths"] = obsoletePaths;
-
-    QDir().mkpath(m_updateDir);
-    QSaveFile file(m_stateFile);
-    if (!file.open(QIODevice::WriteOnly)) return false;
-    const QByteArray payload = QJsonDocument(m_state).toJson(QJsonDocument::Indented);
-    if (file.write(payload) != payload.size()) { file.cancelWriting(); return false; }
-    return file.commit();
-}
-
-bool UpdateTransaction::initialize()
-{
-    QDir(m_stagingDir).removeRecursively();
-    QDir(m_backupDir).removeRecursively();
-    if (!QDir().mkpath(m_stagingDir) || !QDir().mkpath(m_backupDir)) return false;
-    m_state["started_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
-    return writeState("prepared");
-}
-
-bool UpdateTransaction::resumeExisting(QString* errorMessage)
-{
-    QFile file(m_stateFile);
-    if (!file.open(QIODevice::ReadOnly)) {
-        if (errorMessage) *errorMessage = "cannot open upgrade_state.json";
-        return false;
-    }
-    const QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
-    file.close();
-    if (!doc.isObject()) {
-        if (errorMessage) *errorMessage = "invalid upgrade_state.json";
-        return false;
-    }
-    m_state = doc.object();
-    const QString expectedToVersion = m_toVersion;
-    const int expectedManifestId = m_manifestId;
-    const QString stateStatus = m_state.value("status").toString();
-    m_transactionId = m_state.value("transaction_id").toString();
-    m_fromVersion = m_state.value("from_version").toString();
-    m_toVersion = m_state.value("to_version").toString();
-    m_manifestId = m_state.value("manifest_id").toInt();
-    if (m_toVersion != expectedToVersion || m_manifestId != expectedManifestId
-        || (stateStatus != "awaiting_bootstrap" && stateStatus != "post_verify"
-            && stateStatus != "rollback_required")) {
-        if (errorMessage) *errorMessage = "upgrade state does not match resume request";
-        return false;
-    }
-    m_stagingDir = m_state.value("staging_dir").toString();
-    m_backupDir = m_state.value("backup_dir").toString();
-    m_changedPaths.clear();
-    m_obsoletePaths.clear();
-    for (const QJsonValue& value : m_state.value("changed_paths").toArray()) {
-        const QString path = value.toString();
-        if (!safeRelativePath(path)) {
-            if (errorMessage) *errorMessage = "unsafe path in upgrade state";
-            return false;
-        }
-        m_changedPaths.append(path);
-    }
-    for (const QJsonValue& value : m_state.value("obsolete_paths").toArray()) {
-        const QString path = value.toString();
-        if (!safeRelativePath(path)) {
-            if (errorMessage) *errorMessage = "unsafe obsolete path in upgrade state";
-            return false;
-        }
-        m_obsoletePaths.append(path);
-    }
-    if (m_transactionId.isEmpty() || m_stagingDir.isEmpty() || m_backupDir.isEmpty()) {
-        if (errorMessage) *errorMessage = "incomplete upgrade state";
-        return false;
-    }
-    return true;
-}
-
-bool UpdateTransaction::recordVerifiedFiles(const QStringList& changedPaths,
-                                                   const QStringList& obsoletePaths)
-{
-    m_changedPaths.clear();
-    m_obsoletePaths.clear();
-    QSet<QString> changedKeys;
-    for (const QString& path : changedPaths) {
-        if (!safeRelativePath(path)) return false;
-        const QString normalized = QDir::fromNativeSeparators(path);
-        changedKeys.insert(normalized.toCaseFolded());
-        m_changedPaths.append(normalized);
-    }
-    for (const QString& path : obsoletePaths) {
-        if (!safeRelativePath(path)) return false;
-        const QString normalized = QDir::fromNativeSeparators(path);
-        if (changedKeys.contains(normalized.toCaseFolded())) return false;
-        m_obsoletePaths.append(normalized);
-    }
-    return writeState("verified");
-}
-
+    m_state["from_version"] = m_fromVersion;
+    m_state["to_version"] = m_toVersion;
+    m_state["status"] = status;
+    m_state["manifest_id"] = m_manifestId;
+    m_state["updated_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
+    m_state["staging_dir"] = m_stagingDir;
+    m_state["backup_dir"] = m_backupDir;
+    m_state["error_code"] = errorCode;
+    m_state["message"] = message;
+    QJsonArray paths;
+    for (const QString& path : m_changedPaths) paths.append(path);
+    m_state["changed_paths"] = paths;
+    QJsonArray obsoletePaths;
+    for (const QString& path : m_obsoletePaths) obsoletePaths.append(path);
+    m_state["obsolete_paths"] = obsoletePaths;
+
+    QDir().mkpath(m_updateDir);
+    QSaveFile file(m_stateFile);
+    if (!file.open(QIODevice::WriteOnly)) return false;
+    const QByteArray payload = QJsonDocument(m_state).toJson(QJsonDocument::Indented);
+    if (file.write(payload) != payload.size()) { file.cancelWriting(); return false; }
+    return file.commit();
+}
+
+bool UpdateTransaction::initialize()
+{
+    QDir(m_stagingDir).removeRecursively();
+    QDir(m_backupDir).removeRecursively();
+    if (!QDir().mkpath(m_stagingDir) || !QDir().mkpath(m_backupDir)) return false;
+    m_state["started_at"] = QDateTime::currentDateTimeUtc().toString(Qt::ISODate);
+    return writeState("prepared");
+}
+
+bool UpdateTransaction::resumeExisting(QString* errorMessage)
+{
+    QFile file(m_stateFile);
+    if (!file.open(QIODevice::ReadOnly)) {
+        if (errorMessage) *errorMessage = "cannot open upgrade_state.json";
+        return false;
+    }
+    const QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
+    file.close();
+    if (!doc.isObject()) {
+        if (errorMessage) *errorMessage = "invalid upgrade_state.json";
+        return false;
+    }
+    m_state = doc.object();
+    const QString expectedToVersion = m_toVersion;
+    const int expectedManifestId = m_manifestId;
+    const QString stateStatus = m_state.value("status").toString();
+    m_transactionId = m_state.value("transaction_id").toString();
+    m_fromVersion = m_state.value("from_version").toString();
+    m_toVersion = m_state.value("to_version").toString();
+    m_manifestId = m_state.value("manifest_id").toInt();
+    if (m_toVersion != expectedToVersion || m_manifestId != expectedManifestId
+        || (stateStatus != "awaiting_bootstrap" && stateStatus != "post_verify"
+            && stateStatus != "rollback_required")) {
+        if (errorMessage) *errorMessage = "upgrade state does not match resume request";
+        return false;
+    }
+    m_stagingDir = m_state.value("staging_dir").toString();
+    m_backupDir = m_state.value("backup_dir").toString();
+    m_changedPaths.clear();
+    m_obsoletePaths.clear();
+    for (const QJsonValue& value : m_state.value("changed_paths").toArray()) {
+        const QString path = value.toString();
+        if (!safeRelativePath(path)) {
+            if (errorMessage) *errorMessage = "unsafe path in upgrade state";
+            return false;
+        }
+        m_changedPaths.append(path);
+    }
+    for (const QJsonValue& value : m_state.value("obsolete_paths").toArray()) {
+        const QString path = value.toString();
+        if (!safeRelativePath(path)) {
+            if (errorMessage) *errorMessage = "unsafe obsolete path in upgrade state";
+            return false;
+        }
+        m_obsoletePaths.append(path);
+    }
+    if (m_transactionId.isEmpty() || m_stagingDir.isEmpty() || m_backupDir.isEmpty()) {
+        if (errorMessage) *errorMessage = "incomplete upgrade state";
+        return false;
+    }
+    return true;
+}
+
+bool UpdateTransaction::recordVerifiedFiles(const QStringList& changedPaths,
+                                                   const QStringList& obsoletePaths)
+{
+    m_changedPaths.clear();
+    m_obsoletePaths.clear();
+    QSet<QString> changedKeys;
+    for (const QString& path : changedPaths) {
+        if (!safeRelativePath(path)) return false;
+        const QString normalized = QDir::fromNativeSeparators(path);
+        changedKeys.insert(normalized.toCaseFolded());
+        m_changedPaths.append(normalized);
+    }
+    for (const QString& path : obsoletePaths) {
+        if (!safeRelativePath(path)) return false;
+        const QString normalized = QDir::fromNativeSeparators(path);
+        if (changedKeys.contains(normalized.toCaseFolded())) return false;
+        m_obsoletePaths.append(normalized);
+    }
+    return writeState("verified");
+}
+
 bool UpdateTransaction::backupCurrentFiles()
 {
+    // 替换前先备份所有将被修改或删除的文件。
+    // 后续健康检查失败时，可以用这些备份恢复到升级前版本。
     if (!writeState("waiting_mainapp_exit")) return false;
-    QStringList paths = m_changedPaths;
-    paths.append(m_obsoletePaths);
-    for (const QString& path : paths) {
-        const QString installed = QDir(m_installDir).filePath(path);
-        if (!QFile::exists(installed)) continue;
-        const QString backup = QDir(m_backupDir).filePath(path);
-        if (!copyOverwrite(installed, backup))
-            return markFailed("backup_failed", path);
-    }
-    return writeState("backed_up");
-}
-
+    QStringList paths = m_changedPaths;
+    paths.append(m_obsoletePaths);
+    for (const QString& path : paths) {
+        const QString installed = QDir(m_installDir).filePath(path);
+        if (!QFile::exists(installed)) continue;
+        const QString backup = QDir(m_backupDir).filePath(path);
+        if (!copyOverwrite(installed, backup))
+            return markFailed("backup_failed", path);
+    }
+    return writeState("backed_up");
+}
+
 bool UpdateTransaction::installStagedFiles(QString* failedPath)
 {
+    // staging 目录里只放已经下载并校验过 hash 的新文件。
+    // 真正覆盖安装目录时如果任意一个文件失败，就进入 rollback_required。
     if (!writeState("replacing")) return false;
-    for (const QString& path : m_changedPaths) {
-        const QString source = QDir(m_stagingDir).filePath(path);
-        const QString destination = QDir(m_installDir).filePath(path);
-        if (!copyOverwrite(source, destination)) {
-            if (failedPath) *failedPath = path;
-            writeState("rollback_required", "replace_failed", path);
-            return false;
-        }
-    }
-    return writeState("replaced");
-}
-
-bool UpdateTransaction::markAwaitingBootstrap() { return writeState("awaiting_bootstrap"); }
-
-bool UpdateTransaction::markRollbackRequired(const QString& reason)
-{ return writeState("rollback_required", "post_install_failed", reason); }
-
-bool UpdateTransaction::markRolledBack() { return writeState("rolled_back"); }
-
-bool UpdateTransaction::markPostVerify() { return writeState("post_verify"); }
-
-bool UpdateTransaction::rollback(QString* failedPath)
-{
-    writeState("rolling_back");
-    bool ok = true;
-    QStringList paths = m_changedPaths;
-    paths.append(m_obsoletePaths);
-    for (const QString& path : paths) {
-        const QString installed = QDir(m_installDir).filePath(path);
-        const QString backup = QDir(m_backupDir).filePath(path);
-        if (QFile::exists(backup)) {
-            if (!copyOverwrite(backup, installed)) { ok = false; if (failedPath) *failedPath = path; }
-        } else if (QFile::exists(installed) && !QFile::remove(installed)) {
-            ok = false; if (failedPath) *failedPath = path;
-        }
-    }
-    writeState(ok ? "rolled_back" : "failed", ok ? QString() : "rollback_failed",
-               failedPath ? *failedPath : QString());
-    return ok;
-}
-
-bool UpdateTransaction::commit()
-{
-    if (!writeState("committed")) return false;
-    QDir(m_stagingDir).removeRecursively();
-    QDir(m_backupDir).removeRecursively();
-    return true;
-}
-
-bool UpdateTransaction::markFailed(const QString& errorCode, const QString& message)
-{ return writeState("failed", errorCode, message); }
-
-QString UpdateTransaction::transactionId() const { return m_transactionId; }
-QString UpdateTransaction::fromVersion() const { return m_fromVersion; }
-QString UpdateTransaction::stagingDir() const { return m_stagingDir; }
-QString UpdateTransaction::backupDir() const { return m_backupDir; }
-QStringList UpdateTransaction::obsoletePaths() const { return m_obsoletePaths; }
-QString UpdateTransaction::healthFile() const { return QDir(m_updateDir).filePath("health_" + m_transactionId + ".ok"); }
-
+    for (const QString& path : m_changedPaths) {
+        const QString source = QDir(m_stagingDir).filePath(path);
+        const QString destination = QDir(m_installDir).filePath(path);
+        if (!copyOverwrite(source, destination)) {
+            if (failedPath) *failedPath = path;
+            writeState("rollback_required", "replace_failed", path);
+            return false;
+        }
+    }
+    return writeState("replaced");
+}
+
+bool UpdateTransaction::markAwaitingBootstrap() { return writeState("awaiting_bootstrap"); }
+
+bool UpdateTransaction::markRollbackRequired(const QString& reason)
+{ return writeState("rollback_required", "post_install_failed", reason); }
+
+bool UpdateTransaction::markRolledBack() { return writeState("rolled_back"); }
+
+bool UpdateTransaction::markPostVerify() { return writeState("post_verify"); }
+
+bool UpdateTransaction::rollback(QString* failedPath)
+{
+    writeState("rolling_back");
+    bool ok = true;
+    QStringList paths = m_changedPaths;
+    paths.append(m_obsoletePaths);
+    for (const QString& path : paths) {
+        const QString installed = QDir(m_installDir).filePath(path);
+        const QString backup = QDir(m_backupDir).filePath(path);
+        if (QFile::exists(backup)) {
+            if (!copyOverwrite(backup, installed)) { ok = false; if (failedPath) *failedPath = path; }
+        } else if (QFile::exists(installed) && !QFile::remove(installed)) {
+            ok = false; if (failedPath) *failedPath = path;
+        }
+    }
+    writeState(ok ? "rolled_back" : "failed", ok ? QString() : "rollback_failed",
+               failedPath ? *failedPath : QString());
+    return ok;
+}
+
+bool UpdateTransaction::commit()
+{
+    if (!writeState("committed")) return false;
+    QDir(m_stagingDir).removeRecursively();
+    QDir(m_backupDir).removeRecursively();
+    return true;
+}
+
+bool UpdateTransaction::markFailed(const QString& errorCode, const QString& message)
+{ return writeState("failed", errorCode, message); }
+
+QString UpdateTransaction::transactionId() const { return m_transactionId; }
+QString UpdateTransaction::fromVersion() const { return m_fromVersion; }
+QString UpdateTransaction::stagingDir() const { return m_stagingDir; }
+QString UpdateTransaction::backupDir() const { return m_backupDir; }
+QStringList UpdateTransaction::obsoletePaths() const { return m_obsoletePaths; }
+QString UpdateTransaction::healthFile() const { return QDir(m_updateDir).filePath("health_" + m_transactionId + ".ok"); }
+
 bool UpdateTransaction::recoverInterrupted(const QString& installDir, const QString& updateDir,
                                            QString* restoredVersion, QString* errorMessage)
 {
+    // 启动时恢复未完成事务：如果上次升级停在替换/验证/回滚中间，优先恢复到可启动状态。
     QString stateFile = QDir(updateDir.isEmpty() ? QDir(installDir).filePath("update") : updateDir)
-                            .filePath("upgrade_state.json");
-    const QString legacyStateFile = QDir(installDir).filePath("update/upgrade_state.json");
-    if (!QFile::exists(stateFile) && QFile::exists(legacyStateFile))
-        stateFile = legacyStateFile;
-    QFile file(stateFile);
-    if (!file.exists()) return true;
-    if (!file.open(QIODevice::ReadOnly)) { if (errorMessage) *errorMessage = "cannot open upgrade_state.json"; return false; }
-    const QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
-    file.close();
-    if (!doc.isObject()) { if (errorMessage) *errorMessage = "invalid upgrade_state.json"; return false; }
-    QJsonObject state = doc.object();
-    const QString status = state.value("status").toString();
-    if (status == "committed") return true;
-    if (status == "rolled_back") {
-        if (restoredVersion) *restoredVersion = state.value("from_version").toString();
-        return true;
-    }
-    const QString backupDir = state.value("backup_dir").toString();
-    QJsonArray paths = state.value("changed_paths").toArray();
-    for (const QJsonValue& value : state.value("obsolete_paths").toArray()) paths.append(value);
-    const QString errorCode = state.value("error_code").toString();
-    const bool mayContainNewFiles = status == "replacing" || status == "replaced"
-        || status == "post_verify" || status == "rollback_required"
-        || status == "awaiting_bootstrap" || status == "rolling_back" || errorCode == "rollback_failed";
-    bool ok = true;
-    for (const QJsonValue& value : paths) {
-        const QString path = value.toString();
-        if (!safeRelativePath(path)) { ok = false; continue; }
-        const QString installed = QDir(installDir).filePath(path);
-        const QString backup = QDir(backupDir).filePath(path);
-        if (QFile::exists(backup)) {
-            QDir().mkpath(QFileInfo(installed).path());
-            if (QFile::exists(installed)) QFile::remove(installed);
-            if (!QFile::copy(backup, installed)) ok = false;
-        } else if (mayContainNewFiles) {
-            if (QFile::exists(installed) && !QFile::remove(installed)) ok = false;
-        }
-    }
-    if (restoredVersion) *restoredVersion = state.value("from_version").toString();
-    state["status"] = ok ? "rolled_back" : "failed";
-    QSaveFile output(stateFile);
-    if (output.open(QIODevice::WriteOnly)) { output.write(QJsonDocument(state).toJson(QJsonDocument::Indented)); output.commit(); }
-    if (!ok && errorMessage) *errorMessage = "failed to restore one or more files";
-    return ok;
-}
+                            .filePath("upgrade_state.json");
+    const QString legacyStateFile = QDir(installDir).filePath("update/upgrade_state.json");
+    if (!QFile::exists(stateFile) && QFile::exists(legacyStateFile))
+        stateFile = legacyStateFile;
+    QFile file(stateFile);
+    if (!file.exists()) return true;
+    if (!file.open(QIODevice::ReadOnly)) { if (errorMessage) *errorMessage = "cannot open upgrade_state.json"; return false; }
+    const QJsonDocument doc = QJsonDocument::fromJson(file.readAll());
+    file.close();
+    if (!doc.isObject()) { if (errorMessage) *errorMessage = "invalid upgrade_state.json"; return false; }
+    QJsonObject state = doc.object();
+    const QString status = state.value("status").toString();
+    if (status == "committed") return true;
+    if (status == "rolled_back") {
+        if (restoredVersion) *restoredVersion = state.value("from_version").toString();
+        return true;
+    }
+    const QString backupDir = state.value("backup_dir").toString();
+    QJsonArray paths = state.value("changed_paths").toArray();
+    for (const QJsonValue& value : state.value("obsolete_paths").toArray()) paths.append(value);
+    const QString errorCode = state.value("error_code").toString();
+    const bool mayContainNewFiles = status == "replacing" || status == "replaced"
+        || status == "post_verify" || status == "rollback_required"
+        || status == "awaiting_bootstrap" || status == "rolling_back" || errorCode == "rollback_failed";
+    bool ok = true;
+    for (const QJsonValue& value : paths) {
+        const QString path = value.toString();
+        if (!safeRelativePath(path)) { ok = false; continue; }
+        const QString installed = QDir(installDir).filePath(path);
+        const QString backup = QDir(backupDir).filePath(path);
+        if (QFile::exists(backup)) {
+            QDir().mkpath(QFileInfo(installed).path());
+            if (QFile::exists(installed)) QFile::remove(installed);
+            if (!QFile::copy(backup, installed)) ok = false;
+        } else if (mayContainNewFiles) {
+            if (QFile::exists(installed) && !QFile::remove(installed)) ok = false;
+        }
+    }
+    if (restoredVersion) *restoredVersion = state.value("from_version").toString();
+    state["status"] = ok ? "rolled_back" : "failed";
+    QSaveFile output(stateFile);
+    if (output.open(QIODevice::WriteOnly)) { output.write(QJsonDocument(state).toJson(QJsonDocument::Indented)); output.commit(); }
+    if (!ok && errorMessage) *errorMessage = "failed to restore one or more files";
+    return ok;
+}

Updater/UpdateTransaction.h

@@ -1,54 +1,54 @@
-#pragma once
-#include <QString>
-#include <QStringList>
-#include <QJsonObject>
-
-class UpdateTransaction
-{
-public:
-    UpdateTransaction(const QString& installDir, const QString& updateDir, const QString& fromVersion,
-                      const QString& toVersion, int manifestId);
-
-    bool initialize();
-    bool resumeExisting(QString* errorMessage = nullptr);
-    bool recordVerifiedFiles(const QStringList& changedPaths, const QStringList& obsoletePaths);
-    bool backupCurrentFiles();
-    bool installStagedFiles(QString* failedPath = nullptr);
-    bool markAwaitingBootstrap();
-    bool markRollbackRequired(const QString& reason);
-    bool markRolledBack();
-    bool markPostVerify();
-    bool rollback(QString* failedPath = nullptr);
-    bool commit();
-    bool markFailed(const QString& errorCode, const QString& message);
-
-    QString transactionId() const;
-    QString fromVersion() const;
-    QString stagingDir() const;
-    QString backupDir() const;
-    QStringList obsoletePaths() const;
-    QString healthFile() const;
-
-    static bool recoverInterrupted(const QString& installDir, const QString& updateDir,
-                                   QString* restoredVersion = nullptr,
-                                   QString* errorMessage = nullptr);
-
-private:
-    bool writeState(const QString& status, const QString& errorCode = QString(),
-                    const QString& message = QString());
-    bool copyOverwrite(const QString& source, const QString& destination) const;
-    static bool safeRelativePath(const QString& path);
-
-    QString m_installDir;
-    QString m_updateDir;
-    QString m_stateFile;
-    QString m_transactionId;
-    QString m_fromVersion;
-    QString m_toVersion;
-    int m_manifestId = 0;
-    QString m_stagingDir;
-    QString m_backupDir;
-    QStringList m_changedPaths;
-    QStringList m_obsoletePaths;
-    QJsonObject m_state;
-};
+#pragma once
+#include <QString>
+#include <QStringList>
+#include <QJsonObject>
+
+class UpdateTransaction
+{
+public:
+    UpdateTransaction(const QString& installDir, const QString& updateDir, const QString& fromVersion,
+                      const QString& toVersion, int manifestId);
+
+    bool initialize();
+    bool resumeExisting(QString* errorMessage = nullptr);
+    bool recordVerifiedFiles(const QStringList& changedPaths, const QStringList& obsoletePaths);
+    bool backupCurrentFiles();
+    bool installStagedFiles(QString* failedPath = nullptr);
+    bool markAwaitingBootstrap();
+    bool markRollbackRequired(const QString& reason);
+    bool markRolledBack();
+    bool markPostVerify();
+    bool rollback(QString* failedPath = nullptr);
+    bool commit();
+    bool markFailed(const QString& errorCode, const QString& message);
+
+    QString transactionId() const;
+    QString fromVersion() const;
+    QString stagingDir() const;
+    QString backupDir() const;
+    QStringList obsoletePaths() const;
+    QString healthFile() const;
+
+    static bool recoverInterrupted(const QString& installDir, const QString& updateDir,
+                                   QString* restoredVersion = nullptr,
+                                   QString* errorMessage = nullptr);
+
+private:
+    bool writeState(const QString& status, const QString& errorCode = QString(),
+                    const QString& message = QString());
+    bool copyOverwrite(const QString& source, const QString& destination) const;
+    static bool safeRelativePath(const QString& path);
+
+    QString m_installDir;
+    QString m_updateDir;
+    QString m_stateFile;
+    QString m_transactionId;
+    QString m_fromVersion;
+    QString m_toVersion;
+    int m_manifestId = 0;
+    QString m_stagingDir;
+    QString m_backupDir;
+    QStringList m_changedPaths;
+    QStringList m_obsoletePaths;
+    QJsonObject m_state;
+};

Updater/UpdaterLogic.h

@@ -1,73 +1,75 @@
-#pragma once
-#include <QObject>
-#include "HttpHelper.h"
-#include "FileHelper.h"
-#include <QJsonObject>
-#include <QJsonArray>
-#include <QJsonDocument>
-#include <QStringList>
-#include <QNetworkReply>
-#include <QMap>
-#include <QElapsedTimer>
-
-struct FileDownloadItem
-{
-    QString path;
-    QString url;
-    QString sha256;
-    qint64 size;
-};
-
-class UpdaterLogic : public QObject
-{
-    Q_OBJECT
-public:
-    explicit UpdaterLogic(QObject* parent = nullptr);
-
-    void getManifest(const QString& appId, const QString& channel, const QString& targetVer, int versionId);
-    bool verifyManifestSignature(const QString& publicKeyPath = "config/manifest_public_key.pem") const;
-    bool validateLocalFiles(const QString& stagingDir, const QString& installedDir = QString()) const;
-    bool saveManifestCache(const QString& cacheDir) const;
-    bool loadManifestCache(const QString& cacheDir, const QString& version);
+#pragma once
+#include <QObject>
+#include "HttpHelper.h"
+#include "FileHelper.h"
+#include <QJsonObject>
+#include <QJsonArray>
+#include <QJsonDocument>
+#include <QStringList>
+#include <QNetworkReply>
+#include <QMap>
+#include <QElapsedTimer>
+
+struct FileDownloadItem
+{
+    QString path;
+    QString url;
+    QString sha256;
+    qint64 size;
+};
+
+class UpdaterLogic : public QObject
+{
+    Q_OBJECT
+public:
+    explicit UpdaterLogic(QObject* parent = nullptr);
+
+    void getManifest(const QString& appId, const QString& channel, const QString& targetVer, int versionId);
+    bool verifyManifestSignature(const QString& publicKeyPath = "config/manifest_public_key.pem") const;
+    bool validateLocalFiles(const QString& stagingDir, const QString& installedDir = QString()) const;
+    bool saveManifestCache(const QString& cacheDir) const;
+    bool loadManifestCache(const QString& cacheDir, const QString& version);
     bool loadOfflinePackage(const QString& packagePath, const QString& stagingDir = QString());
     QString offlineError() const { return m_offlineError; }
-
-    void getDownloadUrl(const QString& appId, const QString& channel, const QString& targetVer, int versionId);
-    void reportResult(const QString& deviceId, const QString& fromVer, const QString& toVer, bool success);
-    void reportDownloadResult(const QString& appId, const QString& channel, const QString& version, bool success);
-    bool downloadAllFiles(const QString& tempDir, const QString& targetDir);
-    qint64 estimateAdditionalDiskBytes(const QString& targetDir, const QStringList& obsoletePaths) const;
-    QString calcLocalFileSha256(const QString& filePath) const;
-
-    QList<FileDownloadItem> getFileList() const;
-    QJsonObject getManifest() const { return m_manifest; }
-    QStringList obsoleteFilesComparedTo(const QJsonObject& oldManifest) const;
-    QString getManifestText() const { return m_manifestText; }
-    bool allDownloadSuccess() const { return m_downloadAllOk; }
-
-signals:
-    void fetchUrlFinished();
-    void downloadProgress(qint64 receivedBytes, qint64 totalBytes,
-                          const QString& currentPath, double bytesPerSecond);
-
-private:
-    bool downloadSingleFile(const QString& url, const QString& savePath, const QString& expectSha256,
-                            qint64 expectedSize, const QString& resumePartPath);
-    bool isSafeRelativePath(const QString& path) const;
-    bool isRuntimeProtectedPath(const QString& path) const;
-    QByteArray canonicalManifestBytes(const QJsonObject& manifest) const;
-    bool verifySignature(const QByteArray& payload, const QString& signatureBase64, const QString& publicKeyPath) const;
-
-    HttpHelper m_http;
-    QString m_serverAddr;
-    QJsonObject m_manifest;
-    QString m_manifestText;
-    QList<FileDownloadItem> m_fileItems;
+    QString errorString() const { return m_error; }
+
+    void getDownloadUrl(const QString& appId, const QString& channel, const QString& targetVer, int versionId);
+    void reportResult(const QString& deviceId, const QString& fromVer, const QString& toVer, bool success);
+    void reportDownloadResult(const QString& appId, const QString& channel, const QString& version, bool success);
+    bool downloadAllFiles(const QString& tempDir, const QString& targetDir);
+    qint64 estimateAdditionalDiskBytes(const QString& targetDir, const QStringList& obsoletePaths) const;
+    QString calcLocalFileSha256(const QString& filePath) const;
+
+    QList<FileDownloadItem> getFileList() const;
+    QJsonObject getManifest() const { return m_manifest; }
+    QStringList obsoleteFilesComparedTo(const QJsonObject& oldManifest) const;
+    QString getManifestText() const { return m_manifestText; }
+    bool allDownloadSuccess() const { return m_downloadAllOk; }
+
+signals:
+    void fetchUrlFinished();
+    void downloadProgress(qint64 receivedBytes, qint64 totalBytes,
+                          const QString& currentPath, double bytesPerSecond);
+
+private:
+    bool downloadSingleFile(const QString& url, const QString& savePath, const QString& expectSha256,
+                            qint64 expectedSize, const QString& resumePartPath);
+    bool isSafeRelativePath(const QString& path) const;
+    bool isRuntimeProtectedPath(const QString& path) const;
+    QByteArray canonicalManifestBytes(const QJsonObject& manifest) const;
+    bool verifySignature(const QByteArray& payload, const QString& signatureBase64, const QString& publicKeyPath) const;
+
+    HttpHelper m_http;
+    QString m_serverAddr;
+    QJsonObject m_manifest;
+    QString m_manifestText;
+    QList<FileDownloadItem> m_fileItems;
     bool m_downloadAllOk = false;
-    qint64 m_downloadTotalBytes = 0;
-    qint64 m_downloadCompletedBytes = 0;
-    qint64 m_sessionDownloadedBytes = 0;
+    qint64 m_downloadTotalBytes = 0;
+    qint64 m_downloadCompletedBytes = 0;
+    qint64 m_sessionDownloadedBytes = 0;
     QString m_currentDownloadPath;
     QString m_offlineError;
+    mutable QString m_error;
     QElapsedTimer m_downloadTimer;
-};
+};

Updater/main.cpp

@@ -1,150 +1,170 @@
-#include <windows.h>
-#include <QApplication>
+#include <QApplication>
 #include <QCoreApplication>
-#include <QDebug>
-#include <QDir>
-#include <QDirIterator>
+#include <QDebug>
+#include <QDir>
+#include <QDirIterator>
 #include <QElapsedTimer>
 #include <QFile>
+#include <QFileInfo>
 #include <QMessageBox>
 #include <QProcess>
 #include <QProgressDialog>
 #include <QSaveFile>
 #include <QStorageInfo>
-#include <QTextCodec>
 #include <QThread>
+#include <QTranslator>
 #include "UpdaterLogic.h"
-#include "UpdateTransaction.h"
-#include "FileHelper.h"
-#include "ConfigHelper.h"
-#include "TicketHelper.h"
-#include "PolicyHelper.h"
-#include <QVersionNumber>
-
+#include "UpdateTransaction.h"
+#include "FileHelper.h"
+#include "ConfigHelper.h"
+#include "TicketHelper.h"
+#include "PolicyHelper.h"
+#include <QVersionNumber>
+
 int main(int argc, char* argv[])
 {
-    SetConsoleOutputCP(65001);
-    QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
     QApplication app(argc, argv);
     QApplication::setApplicationName("Marsco Updater");
+    QTranslator translator;
+    if (translator.load(":/i18n/update-client_zh_CN.qm"))
+        app.installTranslator(&translator);
+
+    const int elevatedWriteExitCode = ConfigHelper::runElevatedWriteCommandIfRequested();
+    if (elevatedWriteExitCode >= 0)
+        return elevatedWriteExitCode;
 
     UpdaterLogic logic;
-    QString offlinePackagePath;
-    QString appId;
-    QString channel;
-    QString targetVersion;
-    int targetVersionId = 0;
+    QString offlinePackagePath;
+    QString appId;
+    QString channel;
+    QString targetVersion;
+    int targetVersionId = 0;
     if (argc >= 2 && QString(argv[1]).startsWith("--offline-package=")) {
         offlinePackagePath = QString(argv[1]).mid(QString("--offline-package=").size());
         if (!logic.loadOfflinePackage(offlinePackagePath)) {
-            QMessageBox::critical(nullptr, "离线包无效", logic.offlineError());
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Invalid Offline Package"),
+                logic.offlineError());
             return -1;
         }
-        const QJsonObject packageManifest = logic.getManifest();
-        appId = packageManifest.value("app_id").toString();
-        channel = packageManifest.value("channel").toString();
-        targetVersion = packageManifest.value("version").toString();
-        targetVersionId = packageManifest.value("manifest_seq").toInt();
+        const QJsonObject packageManifest = logic.getManifest();
+        appId = packageManifest.value("app_id").toString();
+        channel = packageManifest.value("channel").toString();
+        targetVersion = packageManifest.value("version").toString();
+        targetVersionId = packageManifest.value("manifest_seq").toInt();
     } else {
         if (argc < 5) {
-            QMessageBox::critical(nullptr, "更新器参数错误", "更新器缺少在线更新参数或离线更新包。");
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Updater Argument Error"),
+                QCoreApplication::translate("Updater", "The updater is missing online update arguments or an offline update package."));
             return -1;
         }
-        appId = argv[1]; channel = argv[2]; targetVersion = argv[3]; targetVersionId = QString(argv[4]).toInt();
-    }
-    QString bootstrapResult;
-    for (int i = 5; i < argc; ++i) {
-        const QString arg = argv[i];
-        if (arg.startsWith("--bootstrap-resume="))
-            bootstrapResult = arg.mid(QString("--bootstrap-resume=").size());
-    }
-    const bool resumingFromBootstrap = !bootstrapResult.isEmpty();
-    const QString runtimeDir = QApplication::applicationDirPath();
-
-    ConfigHelper& config = ConfigHelper::instance();
-    const QString targetDir = config.installRoot();
-    const QString updateDir = config.updateRoot();
+        appId = argv[1]; channel = argv[2]; targetVersion = argv[3]; targetVersionId = QString(argv[4]).toInt();
+    }
+    QString bootstrapResult;
+    for (int i = 5; i < argc; ++i) {
+        const QString arg = argv[i];
+        if (arg.startsWith("--bootstrap-resume="))
+            bootstrapResult = arg.mid(QString("--bootstrap-resume=").size());
+    }
+    const bool resumingFromBootstrap = !bootstrapResult.isEmpty();
+    const QString runtimeDir = QApplication::applicationDirPath();
+
+    ConfigHelper& config = ConfigHelper::instance();
+    const QString targetDir = config.installRoot();
+    const QString updateDir = config.updateRoot();
     QDir().mkpath(updateDir);
     if (appId != config.getValue("App", "app_id") || channel != config.getValue("App", "channel")) {
-        QMessageBox::critical(nullptr, "离线包不适用", "更新包的应用或渠道与本机配置不一致。");
+        QMessageBox::critical(nullptr,
+            QCoreApplication::translate("Updater", "Offline Package Not Applicable"),
+            QCoreApplication::translate("Updater", "The update package application or channel does not match the local configuration."));
         return -1;
     }
-    QString fromVersion = config.getValue("App", "current_version");
-    if (!offlinePackagePath.isEmpty()) {
-        PolicyHelper offlinePolicy(runtimeDir);
+    QString fromVersion = config.getValue("App", "current_version");
+    if (!offlinePackagePath.isEmpty()) {
+        PolicyHelper offlinePolicy(runtimeDir);
         if (!offlinePolicy.loadPolicy() || !offlinePolicy.isValid() || offlinePolicy.isExpired()
             || !offlinePolicy.isOfflineAllowed() || !offlinePolicy.isVersionAllowed(targetVersion)) {
-            QMessageBox::critical(nullptr, "离线更新被拒绝", "本地签名策略已过期、禁止离线更新或不允许目标版本。");
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Offline Update Rejected"),
+                QCoreApplication::translate("Updater", "The local signed policy has expired, forbids offline updates, or does not allow the target version."));
             return -1;
         }
-        if (QVersionNumber::compare(QVersionNumber::fromString(targetVersion),
-                                    QVersionNumber::fromString(fromVersion)) < 0
+        if (QVersionNumber::compare(QVersionNumber::fromString(targetVersion),
+                                    QVersionNumber::fromString(fromVersion)) < 0
             && !offlinePolicy.allowRollback()) {
-            QMessageBox::critical(nullptr, "禁止降级", "当前签名策略不允许安装较低版本的离线包。");
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Downgrade Forbidden"),
+                QCoreApplication::translate("Updater", "The current signed policy does not allow installing an offline package with a lower version."));
             return -1;
         }
-    }
-    QString deviceId = config.getValue("Update", "device_id");
-    if (deviceId.isEmpty()) deviceId = "unknown_device";
-
+    }
+    QString deviceId = config.getValue("Update", "device_id");
+    if (deviceId.isEmpty()) deviceId = "unknown_device";
+
     if (!resumingFromBootstrap) {
         QString restoredVersion;
         QString recoveryError;
         if (!UpdateTransaction::recoverInterrupted(targetDir, updateDir, &restoredVersion, &recoveryError)) {
-            QMessageBox::critical(nullptr, "更新恢复失败",
-                QString("检测到上次更新未完成，但无法恢复旧版本：%1\n请不要继续运行软件，并联系管理员。").arg(recoveryError));
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Update Recovery Failed"),
+                QCoreApplication::translate("Updater", "An unfinished update was detected, but the old version could not be restored: %1\nDo not continue running the software. Please contact the administrator.")
+                    .arg(recoveryError));
             return -1;
         }
         if (!restoredVersion.isEmpty() && restoredVersion != fromVersion) {
             if (!config.setValue("App", "current_version", restoredVersion)) {
-                QMessageBox::critical(nullptr, "更新恢复失败", "旧文件已经恢复，但无法恢复版本状态，请检查配置目录写入权限。");
+                QMessageBox::critical(nullptr,
+                    QCoreApplication::translate("Updater", "Update Recovery Failed"),
+                    QCoreApplication::translate("Updater", "The old files were restored, but the version state could not be restored. Please check write permissions for the configuration directory."));
                 return -1;
             }
-            fromVersion = restoredVersion;
-        }
-    }
-
-    QProgressDialog progress("正在准备更新...", QString(), 0, 100);
-    progress.setWindowTitle(QString("正在更新到 %1").arg(targetVersion));
-    progress.setCancelButton(nullptr);
-    progress.setWindowModality(Qt::ApplicationModal);
-    progress.setMinimumDuration(0);
-    progress.setAutoClose(false);
-    progress.setValue(2);
-    progress.show();
-    QApplication::processEvents();
-
-    UpdateTransaction transaction(targetDir, updateDir, fromVersion, targetVersion, targetVersionId);
-    const auto setProgress = [&](int value, const QString& message) {
-        progress.setValue(value);
-        progress.setLabelText(message);
-        QApplication::processEvents();
-    };
-    const auto formatBytes = [](qint64 bytes) {
-        const double value = static_cast<double>(bytes);
-        if (bytes >= 1024LL * 1024 * 1024)
-            return QString::number(value / (1024.0 * 1024 * 1024), 'f', 2) + " GB";
-        if (bytes >= 1024LL * 1024)
-            return QString::number(value / (1024.0 * 1024), 'f', 2) + " MB";
-        if (bytes >= 1024)
-            return QString::number(value / 1024.0, 'f', 1) + " KB";
-        return QString::number(bytes) + " B";
-    };
-    QObject::connect(&logic, &UpdaterLogic::downloadProgress,
+            fromVersion = restoredVersion;
+        }
+    }
+
+    QProgressDialog progress(QCoreApplication::translate("Updater", "Preparing update..."), QString(), 0, 100);
+    progress.setWindowTitle(QCoreApplication::translate("Updater", "Updating to %1").arg(targetVersion));
+    progress.setCancelButton(nullptr);
+    progress.setWindowModality(Qt::ApplicationModal);
+    progress.setMinimumDuration(0);
+    progress.setAutoClose(false);
+    progress.setValue(2);
+    progress.show();
+    QApplication::processEvents();
+
+    UpdateTransaction transaction(targetDir, updateDir, fromVersion, targetVersion, targetVersionId);
+    const auto setProgress = [&](int value, const QString& message) {
+        progress.setValue(value);
+        progress.setLabelText(message);
+        QApplication::processEvents();
+    };
+    const auto formatBytes = [](qint64 bytes) {
+        const double value = static_cast<double>(bytes);
+        if (bytes >= 1024LL * 1024 * 1024)
+            return QString::number(value / (1024.0 * 1024 * 1024), 'f', 2) + " GB";
+        if (bytes >= 1024LL * 1024)
+            return QString::number(value / (1024.0 * 1024), 'f', 2) + " MB";
+        if (bytes >= 1024)
+            return QString::number(value / 1024.0, 'f', 1) + " KB";
+        return QString::number(bytes) + " B";
+    };
+    QObject::connect(&logic, &UpdaterLogic::downloadProgress,
         [&](qint64 received, qint64 total, const QString& path, double bytesPerSecond) {
             const int value = total > 0 ? 30 + static_cast<int>(30 * received / total) : 60;
-            const QString fileText = path.isEmpty() ? QString("正在准备下载...")
-                                                    : QString("正在下载：%1").arg(path);
-            progress.setValue(value);
-            progress.setLabelText(QString("%1\n%2 / %3 · %4/s")
-                .arg(fileText, formatBytes(received), formatBytes(total),
-                     formatBytes(static_cast<qint64>(bytesPerSecond))));
-            QApplication::processEvents();
-        });
-    const auto reportUpdateResult = [&](bool success) {
-        if (offlinePackagePath.isEmpty())
-            logic.reportResult(deviceId, fromVersion, targetVersion, success);
-    };
+            const QString fileText = path.isEmpty()
+                ? QCoreApplication::translate("Updater", "Preparing download...")
+                : QCoreApplication::translate("Updater", "Downloading: %1").arg(path);
+            progress.setValue(value);
+            progress.setLabelText(QString("%1\n%2 / %3 · %4/s")
+                .arg(fileText, formatBytes(received), formatBytes(total),
+                     formatBytes(static_cast<qint64>(bytesPerSecond))));
+            QApplication::processEvents();
+        });
+    const auto reportUpdateResult = [&](bool success) {
+        if (offlinePackagePath.isEmpty())
+            logic.reportResult(deviceId, fromVersion, targetVersion, success);
+    };
     const auto fail = [&](const QString& title, const QString& message,
                           const QString& errorCode = QString("update_failed")) {
         transaction.markFailed(errorCode, message);
@@ -153,258 +173,354 @@ int main(int argc, char* argv[])
         QMessageBox::critical(nullptr, title, message);
         return -1;
     };
-    const auto configuredName = [&](const QString& key, const QString& fallback) {
-        const QString value = config.getValue("Runtime", key).trimmed();
-        return value.isEmpty() ? fallback : value;
+    const auto withDetails = [](const QString& message, const QString& details) {
+        return details.trimmed().isEmpty()
+            ? message
+            : message + QCoreApplication::translate("Updater", "\n\nDetails:\n%1").arg(details);
     };
-    const QString mainExecutable = configuredName("main_executable", "MainApp.exe");
-    const QString updaterExecutable = configuredName("updater_executable", "Updater.exe");
-    const QString bootstrapExecutable = configuredName("bootstrap_executable", "Bootstrap.exe");
-    bool timeoutOk = false;
-    int healthCheckTimeoutMs = config.getValue("Runtime", "health_check_timeout_ms").toInt(&timeoutOk);
-    if (!timeoutOk || healthCheckTimeoutMs < 1000) healthCheckTimeoutMs = 15000;
+    const auto configuredName = [&](const QString& key, const QString& fallback) {
+        return ConfigHelper::executableNameForCurrentPlatform(
+            config.getValue("Runtime", key), fallback);
+    };
+    const QString mainExecutable = configuredName("main_executable", "MainApp");
+    const QString updaterExecutable = configuredName("updater_executable", "Updater");
+    const QString bootstrapExecutable = configuredName("bootstrap_executable", "Bootstrap");
+    bool timeoutOk = false;
+    int healthCheckTimeoutMs = config.getValue("Runtime", "health_check_timeout_ms").toInt(&timeoutOk);
+    if (!timeoutOk || healthCheckTimeoutMs < 1000) healthCheckTimeoutMs = 15000;
     const QString mainAppPath = QDir(runtimeDir).filePath(mainExecutable);
     const QString updaterPath = QDir(runtimeDir).filePath(updaterExecutable);
     const QString bootstrapPath = QDir(runtimeDir).filePath(bootstrapExecutable);
     const QString launchToken = config.getValue("App", "launch_token");
+    QString mainStartupError;
     const auto launchMainApp = [&](const QString& healthFile = QString()) {
+        mainStartupError.clear();
+        if (!QFileInfo::exists(mainAppPath)) {
+            mainStartupError = QCoreApplication::translate(
+                "Updater",
+                "Cannot start the main application because the executable file does not exist.\nExecutable: %1\nCheck main_executable and install_root in the generated client configuration.")
+                .arg(mainAppPath);
+            return false;
+        }
         QString ticketPath;
         QString ticketError;
         const QString launchVersion = config.getValue("App", "current_version");
         if (!TicketHelper::createTicket(appId, deviceId, launchVersion, launchToken,
                                         &ticketPath, &ticketError)) {
             qDebug() << "Cannot create launch ticket:" << ticketError;
+            mainStartupError = QCoreApplication::translate(
+                "Updater",
+                "Cannot start the main application because the one-time launch ticket could not be created.\nExecutable: %1\nDetails: %2")
+                .arg(mainAppPath, ticketError);
             return false;
         }
         QStringList args{QString("--ticket-file=%1").arg(ticketPath)};
         if (!healthFile.isEmpty()) args.append(QString("--health-file=%1").arg(healthFile));
         const bool started = QProcess::startDetached(mainAppPath, args);
-        if (!started) QFile::remove(ticketPath);
+        if (!started) {
+            QFile::remove(ticketPath);
+            mainStartupError = QCoreApplication::translate(
+                "Updater",
+                "Cannot start the main application process.\nExecutable: %1\nTicket file: %2\nHealth file: %3\nCheck file permissions, dependent DLLs/shared libraries, and whether the executable can run independently.")
+                .arg(mainAppPath, ticketPath, healthFile.isEmpty() ? QCoreApplication::translate("Updater", "<not used>") : healthFile);
+        }
         return started;
     };
-    const auto bootstrapPlanFile = [&]() {
-        return QDir(updateDir).filePath("bootstrap_plan_" + transaction.transactionId() + ".txt");
-    };
-    const auto launchBootstrap = [&](const QString& mode) {
-        const QStringList args{
-            bootstrapPlanFile(), targetDir, transaction.stagingDir(), transaction.backupDir(), updaterPath,
-            QString::number(QCoreApplication::applicationPid()), appId, channel,
-            targetVersion, QString::number(targetVersionId), mode
-        };
-        return QFile::exists(bootstrapPath) && QProcess::startDetached(bootstrapPath, args);
-    };
+    const auto bootstrapPlanFile = [&]() {
+        return QDir(updateDir).filePath("bootstrap_plan_" + transaction.transactionId() + ".txt");
+    };
+    const auto launchBootstrap = [&](const QString& mode) {
+        const QStringList args{
+            bootstrapPlanFile(), targetDir, transaction.stagingDir(), transaction.backupDir(), updaterPath,
+            QString::number(QCoreApplication::applicationPid()), appId, channel,
+            targetVersion, QString::number(targetVersionId), mode
+        };
+        return QFile::exists(bootstrapPath) && QProcess::startDetached(bootstrapPath, args);
+    };
     const auto delegateRollback = [&](const QString& title, const QString& reason) {
         FileHelper::killProcess(mainExecutable);
         transaction.markRollbackRequired(reason);
-        progress.setLabelText("正在将回滚工作移交给 Bootstrap...");
+        progress.setLabelText(QCoreApplication::translate("Updater", "Delegating rollback to Bootstrap..."));
         QApplication::processEvents();
-        if (launchBootstrap("rollback")) {
-            progress.close();
-            return 0;
-        }
+        if (launchBootstrap("rollback")) {
+            progress.close();
+            return 0;
+        }
         reportUpdateResult(false);
         progress.close();
         QMessageBox::critical(nullptr, title,
-            reason + "\n\n无法启动 Bootstrap 执行回滚。请不要继续运行软件，并联系管理员。");
+            reason + QCoreApplication::translate("Updater", "\n\nCannot start Bootstrap to perform rollback. Do not continue running the software. Please contact the administrator."));
         return -1;
     };
-
-    if (resumingFromBootstrap) {
-        QString resumeError;
-        if (!transaction.resumeExisting(&resumeError)) {
+
+    if (resumingFromBootstrap) {
+        QString resumeError;
+        if (!transaction.resumeExisting(&resumeError)) {
             reportUpdateResult(false);
             progress.close();
-            QMessageBox::critical(nullptr, "事务续办失败",
-                QString("无法读取 Bootstrap 更新事务：%1").arg(resumeError));
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Transaction Resume Failed"),
+                QCoreApplication::translate("Updater", "Cannot read the Bootstrap update transaction: %1").arg(resumeError));
             return -1;
         }
-        fromVersion = transaction.fromVersion();
-        if (QFile::exists(QDir(transaction.backupDir()).filePath(".offline_mode")))
-            offlinePackagePath = "__bootstrap_resumed_offline__";
-        if (bootstrapResult == "rolledback") {
-            const bool stateOk = config.setValue("App", "current_version", fromVersion);
-            transaction.markRolledBack();
-            reportUpdateResult(false);
+        fromVersion = transaction.fromVersion();
+        if (QFile::exists(QDir(transaction.backupDir()).filePath(".offline_mode")))
+            offlinePackagePath = "__bootstrap_resumed_offline__";
+        if (bootstrapResult == "rolledback") {
+            const bool stateOk = config.setValue("App", "current_version", fromVersion);
+            transaction.markRolledBack();
+            reportUpdateResult(false);
             if (stateOk) launchMainApp();
             progress.close();
-            QMessageBox::warning(nullptr, "更新已回滚",
-                stateOk ? "新版本安装或启动失败，已自动恢复并启动旧版本。"
-                        : "旧文件已经恢复，但旧版本号写回失败，请检查配置目录权限。");
+            QMessageBox::warning(nullptr,
+                QCoreApplication::translate("Updater", "Update Rolled Back"),
+                stateOk
+                    ? QCoreApplication::translate("Updater", "The new version failed to install or start. The old version has been restored and started automatically.")
+                    : QCoreApplication::translate("Updater", "The old files were restored, but the old version number could not be written back. Please check configuration directory permissions."));
             return stateOk ? 0 : -1;
         }
         if (bootstrapResult != "success") {
             reportUpdateResult(false);
             progress.close();
-            QMessageBox::critical(nullptr, "自动回滚失败",
-                "Bootstrap 无法完整恢复旧版本。请不要继续运行软件，并联系管理员。");
+            QMessageBox::critical(nullptr,
+                QCoreApplication::translate("Updater", "Automatic Rollback Failed"),
+                QCoreApplication::translate("Updater", "Bootstrap could not fully restore the old version. Do not continue running the software. Please contact the administrator."));
             return -1;
         }
     } else if (!transaction.initialize()) {
-        return fail("更新准备失败", "无法创建更新事务目录或保存事务状态。", "transaction_init_failed");
+        return fail(QCoreApplication::translate("Updater", "Update Preparation Failed"),
+                    QCoreApplication::translate("Updater", "Cannot create the update transaction directory or save the transaction state."),
+                    "transaction_init_failed");
     } else if (!offlinePackagePath.isEmpty()) {
         QFile marker(QDir(transaction.backupDir()).filePath(".offline_mode"));
         if (!marker.open(QIODevice::WriteOnly) || marker.write("offline\n") != 8)
-            return fail("更新准备失败", "无法保存离线事务标记。", "offline_marker_failed");
+            return fail(QCoreApplication::translate("Updater", "Update Preparation Failed"),
+                        QCoreApplication::translate("Updater", "Cannot save the offline transaction marker."),
+                        "offline_marker_failed");
     }
 
-    setProgress(resumingFromBootstrap ? 72 : 10, offlinePackagePath.isEmpty() ? "正在获取并验证版本清单..." : "正在验证离线更新包...");
-    const QString manifestCacheDir = QDir(updateDir).filePath("manifest_cache");
-    if (resumingFromBootstrap) {
+    setProgress(resumingFromBootstrap ? 72 : 10,
+        offlinePackagePath.isEmpty()
+            ? QCoreApplication::translate("Updater", "Fetching and verifying version manifest...")
+            : QCoreApplication::translate("Updater", "Verifying offline update package..."));
+    const QString manifestCacheDir = QDir(updateDir).filePath("manifest_cache");
+    if (resumingFromBootstrap) {
         if (!logic.loadManifestCache(manifestCacheDir, targetVersion))
-            return delegateRollback("清单缓存失败", "Bootstrap 安装后无法读取签名 Manifest 缓存。");
-    } else if (offlinePackagePath.isEmpty()) {
-        logic.getManifest(appId, channel, targetVersion, targetVersionId);
-    }
-    if (!logic.verifyManifestSignature()) {
+            return delegateRollback(QCoreApplication::translate("Updater", "Manifest Cache Failed"),
+                                    withDetails(QCoreApplication::translate("Updater", "Cannot read the signed manifest cache after Bootstrap installation."),
+                                                logic.errorString()));
+    } else if (offlinePackagePath.isEmpty()) {
+        logic.getManifest(appId, channel, targetVersion, targetVersionId);
+    }
+    if (!logic.verifyManifestSignature()) {
         if (resumingFromBootstrap)
-            return delegateRollback("安全验证失败", "Bootstrap 安装后无法重新验证版本清单签名。");
-        return fail("安全验证失败", "版本清单签名无效，更新已停止。请联系管理员。", "manifest_signature_invalid");
-    }
-    QStringList obsoletePaths;
-    if (!resumingFromBootstrap && fromVersion != targetVersion) {
-        UpdaterLogic oldManifestLogic;
-        if (oldManifestLogic.loadManifestCache(manifestCacheDir, fromVersion)
-            && oldManifestLogic.getManifest().value("version").toString() == fromVersion
-            && oldManifestLogic.verifyManifestSignature()) {
-            obsoletePaths = logic.obsoleteFilesComparedTo(oldManifestLogic.getManifest());
-            qDebug() << "Obsolete files from signed previous manifest:" << obsoletePaths;
-        } else {
-            qDebug() << "No valid signed previous manifest cache; obsolete deletion skipped for safety";
-        }
-    }
+            return delegateRollback(QCoreApplication::translate("Updater", "Security Verification Failed"),
+                                    withDetails(QCoreApplication::translate("Updater", "Cannot reverify the manifest signature after Bootstrap installation."),
+                                                logic.errorString()));
+        return fail(QCoreApplication::translate("Updater", "Security Verification Failed"),
+                    withDetails(QCoreApplication::translate("Updater", "The version manifest signature is invalid. The update has stopped. Please contact the administrator."),
+                                logic.errorString()),
+                    "manifest_signature_invalid");
+    }
+    QStringList obsoletePaths;
+    if (!resumingFromBootstrap && fromVersion != targetVersion) {
+        UpdaterLogic oldManifestLogic;
+        if (oldManifestLogic.loadManifestCache(manifestCacheDir, fromVersion)
+            && oldManifestLogic.getManifest().value("version").toString() == fromVersion
+            && oldManifestLogic.verifyManifestSignature()) {
+            obsoletePaths = logic.obsoleteFilesComparedTo(oldManifestLogic.getManifest());
+            qDebug() << "Obsolete files from signed previous manifest:" << obsoletePaths;
+        } else {
+            qDebug() << "No valid signed previous manifest cache; obsolete deletion skipped for safety";
+        }
+    }
     if (!logic.saveManifestCache(manifestCacheDir)) {
         if (resumingFromBootstrap)
-            return delegateRollback("清单缓存失败", "无法保存新版本 Manifest 缓存。");
-        return fail("清单缓存失败", "无法保存新版本 Manifest 缓存，更新已停止。", "manifest_cache_failed");
+            return delegateRollback(QCoreApplication::translate("Updater", "Manifest Cache Failed"),
+                                    withDetails(QCoreApplication::translate("Updater", "Cannot save the new version manifest cache."),
+                                                logic.errorString()));
+        return fail(QCoreApplication::translate("Updater", "Manifest Cache Failed"),
+                    withDetails(QCoreApplication::translate("Updater", "Cannot save the new version manifest cache. The update has stopped."),
+                                logic.errorString()),
+                    "manifest_cache_failed");
     }
 
     if (!resumingFromBootstrap) {
-        setProgress(25, offlinePackagePath.isEmpty() ? "正在获取安全下载地址..." : "正在准备离线包文件...");
+        setProgress(25,
+            offlinePackagePath.isEmpty()
+                ? QCoreApplication::translate("Updater", "Fetching secure download URLs...")
+                : QCoreApplication::translate("Updater", "Preparing offline package files..."));
         if (offlinePackagePath.isEmpty())
             logic.getDownloadUrl(appId, channel, targetVersion, targetVersionId);
         if (logic.getFileList().isEmpty())
-            return fail("没有可更新文件", "服务器没有返回任何版本文件，更新已停止。", "empty_file_list");
-
-        QStorageInfo storage(updateDir);
-        storage.refresh();
-        const qint64 requiredBytes = logic.estimateAdditionalDiskBytes(targetDir, obsoletePaths);
+            return fail(QCoreApplication::translate("Updater", "No Files to Update"),
+                        withDetails(QCoreApplication::translate("Updater", "The server did not return any version files. The update has stopped."),
+                                    logic.errorString()),
+                        "empty_file_list");
+
+        QStorageInfo storage(updateDir);
+        storage.refresh();
+        const qint64 requiredBytes = logic.estimateAdditionalDiskBytes(targetDir, obsoletePaths);
         const qint64 availableBytes = storage.bytesAvailable();
         if (!storage.isValid() || !storage.isReady() || availableBytes < requiredBytes) {
-            return fail("磁盘空间不足",
-                QString("更新至少需要 %1 可用空间，安装盘当前仅剩 %2。\n"
-                        "所需空间已包含下载文件、旧版本备份和安全余量。")
+            return fail(QCoreApplication::translate("Updater", "Insufficient Disk Space"),
+                QCoreApplication::translate("Updater",
+                        "The update requires at least %1 of free space, but the installation drive currently has only %2.\n"
+                        "The required space includes downloaded files, old version backups, and a safety margin.")
                     .arg(formatBytes(requiredBytes), formatBytes(qMax<qint64>(0, availableBytes))),
                 "disk_space_insufficient");
         }
 
         const QString stagingDir = transaction.stagingDir();
-        setProgress(30, QString(offlinePackagePath.isEmpty() ? "正在下载并校验 %1 个版本文件..." : "正在提取并校验 %1 个离线文件...").arg(logic.getFileList().size()));
+        setProgress(30, offlinePackagePath.isEmpty()
+            ? QCoreApplication::translate("Updater", "Downloading and verifying %1 version files...").arg(logic.getFileList().size())
+            : QCoreApplication::translate("Updater", "Extracting and verifying %1 offline files...").arg(logic.getFileList().size()));
         if (!offlinePackagePath.isEmpty()) {
             if (!logic.loadOfflinePackage(offlinePackagePath, stagingDir))
-                return fail("离线包提取失败", logic.offlineError(), "offline_package_invalid");
+                return fail(QCoreApplication::translate("Updater", "Offline Package Extraction Failed"),
+                            logic.offlineError(),
+                            "offline_package_invalid");
         } else {
             if (!logic.downloadAllFiles(stagingDir, targetDir)) {
                 logic.reportDownloadResult(appId, channel, targetVersion, false);
-                return fail("下载失败", "部分文件下载失败或 SHA-256 校验未通过，请检查网络后重试。", "download_failed");
+                return fail(QCoreApplication::translate("Updater", "Download Failed"),
+                            withDetails(QCoreApplication::translate("Updater", "Some files failed to download or failed SHA-256 verification. Please check the network, update cache, or server release files and try again."),
+                                        logic.errorString()),
+                            "download_failed");
             }
             logic.reportDownloadResult(appId, channel, targetVersion, true);
         }
 
-        setProgress(58, "正在校验完整版本文件...");
+        setProgress(58, QCoreApplication::translate("Updater", "Verifying complete version files..."));
         if (!logic.validateLocalFiles(stagingDir, targetDir))
-            return fail("文件校验失败", "暂存文件与版本清单不一致，更新已停止。", "staging_verify_failed");
-
-        QStringList changedPaths;
-        QDir stagingRoot(stagingDir);
-        QDirIterator stagingFiles(stagingDir, QDir::Files, QDirIterator::Subdirectories);
-        while (stagingFiles.hasNext())
-            changedPaths.append(QDir::fromNativeSeparators(stagingRoot.relativeFilePath(stagingFiles.next())));
-        const QString runtimePrefix = config.runtimeRelativePath();
-        const QString bootstrapManifestPath = QDir::fromNativeSeparators(
-            runtimePrefix.isEmpty() ? bootstrapExecutable : runtimePrefix + "/" + bootstrapExecutable);
+            return fail(QCoreApplication::translate("Updater", "File Verification Failed"),
+                        withDetails(QCoreApplication::translate("Updater", "The downloaded/staged files do not match the target version manifest. The update has stopped before replacing installed files."),
+                                    logic.errorString()),
+                        "staging_verify_failed");
+
+        QStringList changedPaths;
+        QDir stagingRoot(stagingDir);
+        QDirIterator stagingFiles(stagingDir, QDir::Files, QDirIterator::Subdirectories);
+        while (stagingFiles.hasNext())
+            changedPaths.append(QDir::fromNativeSeparators(stagingRoot.relativeFilePath(stagingFiles.next())));
+        const QString runtimePrefix = config.runtimeRelativePath();
+        const QString bootstrapManifestPath = QDir::fromNativeSeparators(
+            runtimePrefix.isEmpty() ? bootstrapExecutable : runtimePrefix + "/" + bootstrapExecutable);
         for (const QString& path : changedPaths) {
             if (path.compare(bootstrapManifestPath, Qt::CaseInsensitive) == 0)
-                return fail("Bootstrap 无法自更新", QString("本次版本包含新的 %1。请使用安装包升级该组件，再重新发布业务版本。").arg(bootstrapManifestPath), "bootstrap_self_update_blocked");
+                return fail(QCoreApplication::translate("Updater", "Bootstrap Cannot Self-Update"),
+                            QCoreApplication::translate("Updater", "This version contains a new %1. Please upgrade this component with the installer, then publish the business version again.")
+                                .arg(bootstrapManifestPath),
+                            "bootstrap_self_update_blocked");
         }
         if (!transaction.recordVerifiedFiles(changedPaths, obsoletePaths))
-            return fail("事务记录失败", "无法保存已校验或待删除文件列表，更新已停止。", "transaction_record_failed");
+            return fail(QCoreApplication::translate("Updater", "Transaction Recording Failed"),
+                        QCoreApplication::translate("Updater", "Cannot save the list of verified or pending deletion files. The update has stopped."),
+                        "transaction_record_failed");
 
-        setProgress(66, "正在关闭主程序...");
+        setProgress(66, QCoreApplication::translate("Updater", "Closing the main application..."));
         if (!FileHelper::killProcess(mainExecutable))
-            return fail("无法关闭主程序", QString("%1 仍在运行，请手动关闭后重试。").arg(mainExecutable), "mainapp_close_failed");
+            return fail(QCoreApplication::translate("Updater", "Cannot Close Main Application"),
+                        QCoreApplication::translate("Updater", "%1 is still running. Please close it manually and try again.").arg(mainExecutable),
+                        "mainapp_close_failed");
 
-        setProgress(72, QString("正在备份 %1 个待变更文件（其中删除 %2 个）...")
+        setProgress(72, QCoreApplication::translate("Updater", "Backing up %1 files to be changed, including %2 files to be deleted...")
             .arg(changedPaths.size() + obsoletePaths.size()).arg(obsoletePaths.size()));
         if (!transaction.backupCurrentFiles())
-            return fail("备份失败", "无法备份当前版本文件，尚未安装新版本。请检查磁盘空间和目录权限。", "backup_failed");
+            return fail(QCoreApplication::translate("Updater", "Backup Failed"),
+                        QCoreApplication::translate("Updater", "Cannot back up current version files. The new version has not been installed. Please check disk space and directory permissions."),
+                        "backup_failed");
 
         const QString planFile = bootstrapPlanFile();
         QSaveFile plan(planFile);
         if (!plan.open(QIODevice::WriteOnly))
-            return fail("接管准备失败", "无法创建 Bootstrap 文件计划。", "bootstrap_plan_failed");
-        const auto writePlanItem = [&](char operation, const QString& path) {
-            const QByteArray line = QByteArray(1, operation) + '\t' + path.toUtf8() + '\n';
-            return plan.write(line) == line.size();
-        };
-        for (const QString& path : changedPaths) {
+            return fail(QCoreApplication::translate("Updater", "Bootstrap Handoff Preparation Failed"),
+                        QCoreApplication::translate("Updater", "Cannot create the Bootstrap file plan."),
+                        "bootstrap_plan_failed");
+        const auto writePlanItem = [&](char operation, const QString& path) {
+            const QByteArray line = QByteArray(1, operation) + '\t' + path.toUtf8() + '\n';
+            return plan.write(line) == line.size();
+        };
+        for (const QString& path : changedPaths) {
             if (!writePlanItem('C', path)) {
                 plan.cancelWriting();
-                return fail("接管准备失败", "无法写入 Bootstrap 复制计划。", "bootstrap_plan_failed");
+                return fail(QCoreApplication::translate("Updater", "Bootstrap Handoff Preparation Failed"),
+                            QCoreApplication::translate("Updater", "Cannot write the Bootstrap copy plan."),
+                            "bootstrap_plan_failed");
             }
         }
         for (const QString& path : obsoletePaths) {
             if (!writePlanItem('D', path)) {
                 plan.cancelWriting();
-                return fail("接管准备失败", "无法写入 Bootstrap 删除计划。", "bootstrap_plan_failed");
+                return fail(QCoreApplication::translate("Updater", "Bootstrap Handoff Preparation Failed"),
+                            QCoreApplication::translate("Updater", "Cannot write the Bootstrap deletion plan."),
+                            "bootstrap_plan_failed");
             }
         }
         if (!plan.commit() || !transaction.markAwaitingBootstrap())
-            return fail("接管准备失败", "无法提交 Bootstrap 文件计划或事务状态。", "bootstrap_plan_failed");
+            return fail(QCoreApplication::translate("Updater", "Bootstrap Handoff Preparation Failed"),
+                        QCoreApplication::translate("Updater", "Cannot commit the Bootstrap file plan or transaction state."),
+                        "bootstrap_plan_failed");
 
-        setProgress(78, "正在将安装工作移交给 Bootstrap...");
+        setProgress(78, QCoreApplication::translate("Updater", "Delegating installation to Bootstrap..."));
         if (!launchBootstrap("install"))
-            return fail("Bootstrap 启动失败", QString("无法启动独立更新接管程序：%1").arg(bootstrapPath), "bootstrap_start_failed");
-        progress.close();
-        return 0;
-    }
-
-    setProgress(82, "正在校验 Bootstrap 安装结果...");
+            return fail(QCoreApplication::translate("Updater", "Bootstrap Startup Failed"),
+                        QCoreApplication::translate("Updater", "Cannot start the standalone update handoff program: %1").arg(bootstrapPath),
+                        "bootstrap_start_failed");
+        progress.close();
+        return 0;
+    }
+
+    setProgress(82, QCoreApplication::translate("Updater", "Verifying Bootstrap installation result..."));
     if (!transaction.markPostVerify() || !logic.validateLocalFiles(targetDir))
-        return delegateRollback("安装校验失败", "新版本文件安装后校验未通过。");
+        return delegateRollback(QCoreApplication::translate("Updater", "Installation Verification Failed"),
+                                withDetails(QCoreApplication::translate("Updater", "New version files failed verification after installation. The updater will roll back to the previous version."),
+                                            logic.errorString()));
     for (const QString& path : transaction.obsoletePaths()) {
         if (QFile::exists(QDir(targetDir).filePath(path)))
-            return delegateRollback("废弃文件清理失败", QString("废弃文件仍然存在：%1").arg(path));
+            return delegateRollback(QCoreApplication::translate("Updater", "Obsolete File Cleanup Failed"),
+                                    QCoreApplication::translate("Updater", "An obsolete file still exists: %1").arg(path));
     }
 
-    setProgress(89, "正在保存新版本状态...");
+    setProgress(89, QCoreApplication::translate("Updater", "Saving new version state..."));
     if (!config.setValue("App", "current_version", targetVersion)
         || config.getValue("App", "current_version") != targetVersion)
-        return delegateRollback("状态保存失败", "无法保存当前版本号。");
+        return delegateRollback(QCoreApplication::translate("Updater", "State Save Failed"),
+                                QCoreApplication::translate("Updater", "Cannot save the current version number."));
 
     const QString healthFile = transaction.healthFile();
     QFile::remove(healthFile);
-    setProgress(94, "正在启动新版本并等待健康确认...");
+    setProgress(94, QCoreApplication::translate("Updater", "Starting the new version and waiting for health confirmation..."));
     if (!launchMainApp(healthFile))
-        return delegateRollback("启动失败", QString("%1 无法启动。").arg(mainExecutable));
-
-    QElapsedTimer healthTimer;
-    healthTimer.start();
-    while (healthTimer.elapsed() < healthCheckTimeoutMs && !QFile::exists(healthFile)) {
-        QApplication::processEvents();
-        QThread::msleep(100);
+        return delegateRollback(QCoreApplication::translate("Updater", "Startup Failed"),
+                                mainStartupError.isEmpty()
+                                    ? QCoreApplication::translate("Updater", "%1 cannot be started.").arg(mainExecutable)
+                                    : mainStartupError);
+
+    QElapsedTimer healthTimer;
+    healthTimer.start();
+    while (healthTimer.elapsed() < healthCheckTimeoutMs && !QFile::exists(healthFile)) {
+        QApplication::processEvents();
+        QThread::msleep(100);
     }
     if (!QFile::exists(healthFile))
-        return delegateRollback("启动确认失败", QString("新版本在 %1 毫秒内没有完成启动健康确认。").arg(healthCheckTimeoutMs));
+        return delegateRollback(QCoreApplication::translate("Updater", "Startup Confirmation Failed"),
+                                QCoreApplication::translate("Updater", "The new version did not complete startup health confirmation within %1 milliseconds.")
+                                    .arg(healthCheckTimeoutMs));
 
-    setProgress(99, "正在提交更新事务...");
+    setProgress(99, QCoreApplication::translate("Updater", "Committing update transaction..."));
     if (!transaction.commit())
-        return delegateRollback("事务提交失败", "新版本已经启动，但无法提交更新事务。");
-
-    QFile::remove(healthFile);
-    QFile::remove(bootstrapPlanFile());
+        return delegateRollback(QCoreApplication::translate("Updater", "Transaction Commit Failed"),
+                                QCoreApplication::translate("Updater", "The new version has started, but the update transaction could not be committed."));
+
+    QFile::remove(healthFile);
+    QFile::remove(bootstrapPlanFile());
     reportUpdateResult(true);
     progress.setValue(100);
     progress.close();
-    QMessageBox::information(nullptr, "更新完成", QString("软件已成功更新到 %1，并通过启动健康检查。").arg(targetVersion));
-    return 0;
-}
+    QMessageBox::information(nullptr,
+        QCoreApplication::translate("Updater", "Update Complete"),
+        QCoreApplication::translate("Updater", "The software has been successfully updated to %1 and passed the startup health check.")
+            .arg(targetVersion));
+    return 0;
+}

config/app_config.example.json

@@ -1,22 +1,21 @@
-{
-  "app_id": "simcae",
-  "app_name": "SimCAE",
-  "channel": "stable",
-  "current_version": "1.0.0",
-  "client_protocol": "3",
-  "launch_token": "SimCAE_Launch_Token_2026_ChangeMe_32Bytes",
+{
+  "app_id": "simcae",
+  "app_name": "SimCAE",
+  "channel": "stable",
+  "current_version": "1.0.0",
+  "client_protocol": "3",
+  "launch_token": "SimCAE_Launch_Token_2026_ChangeMe_32Bytes",
   "license_key": "",
-  "api_base_url": "http://YOUR_SERVER_IP:8000",
-  "client_token": "SimCAEClientToken2026",
-  "request_timeout_ms": "5000",
-  "temp_folder": "update_temp",
-  "device_id": "",
-  "install_root": "..",
-  "main_executable": "SimCAE.exe",
-  "launcher_executable": "Launcher.exe",
-  "updater_executable": "Updater.exe",
-  "bootstrap_executable": "Bootstrap.exe",
-  "health_check_timeout_ms": "15000",
-  "platform": "windows",
-  "arch": "x64"
-}
+  "client_token": "SimCAEClientToken2026",
+  "request_timeout_ms": "5000",
+  "temp_folder": "update_temp",
+  "device_id": "",
+  "install_root": "..",
+  "main_executable": "SimCAE.exe",
+  "launcher_executable": "Launcher.exe",
+  "updater_executable": "Updater.exe",
+  "bootstrap_executable": "Bootstrap.exe",
+  "health_check_timeout_ms": "15000",
+  "platform": "windows",
+  "arch": "x64"
+}

config/app_config.linux.example.json

@@ -0,0 +1,21 @@
+{
+  "app_id": "simcae",
+  "app_name": "SimCAE",
+  "channel": "stable",
+  "current_version": "1.0.0",
+  "client_protocol": "3",
+  "launch_token": "SimCAE_Launch_Token_2026_ChangeMe_32Bytes",
+  "license_key": "",
+  "client_token": "SimCAEClientToken2026",
+  "request_timeout_ms": "5000",
+  "temp_folder": "update_temp",
+  "device_id": "",
+  "install_root": "..",
+  "main_executable": "SimCAE",
+  "launcher_executable": "Launcher",
+  "updater_executable": "Updater",
+  "bootstrap_executable": "Bootstrap",
+  "health_check_timeout_ms": "15000",
+  "platform": "linux",
+  "arch": "x64"
+}

config/manifest_public_key.pem

@@ -1,9 +1,9 @@
 -----BEGIN PUBLIC KEY-----
-MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMROESbT36XU4d3YjuwU
-WAC2h5p3btFu/IAeF3bVtHMovIA4ZXXKYsiq5FycDnDzyD86ou3B7PP7uHhVhn2l
-Uru7QElYRfEfQAFSU5dErc+SZo+oT170cgq1ePPD/YleKPRqFAL221Tbh5pusHcZ
-Ocujit2qrfg5f4rIEzWu7kBKVSJ6WChkjetEL6OZ43ClkDyUGebUuaQ9dv39YVlv
-Fp2pfARi7/7djMMncLVaFU2AAIuSy3jgQg65DOFRVPSr1P/rRfuqU55ZmqAmmZIs
-F/KVpne6zLFBXrxf5rNTBch+nxX+hcE7M+K0PJA5Ie669qRQFRwxoJlGpSOvMefQ
-TwIDAQAB
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArX1FSi06eP8XhX4B3Oy6
+FzfkTe3FBIg6OjWpT1541LivRTRt9HXZ30nKuIs5itXBzBQPMU8hsfR0MD9nfPG/
+NlajfZzqbyxAJlUMeThJiwtyz98wv3VE1hS2Bwuc3mbmtfU0zl/MoPdWrluL3x3C
+bt0ylL00rLBuvjgG21zDflVqj3w9CwpKHFsNrSYoI6vOFX9YrRZ9tKcPEkSRPqts
+411QkAQLtMiOMIIhNe5aFIL7doCnglx32hJeHNCTUSxjM9VyHUTEj8wKN/6Gy5iP
+YZGRafeiJZ32RRIHyssereAg3Xe/3scd+tbFNNYP9xrRhRgDacmkSCBodnbJd4Qc
+rQIDAQAB
 -----END PUBLIC KEY-----

config/server_config.json

@@ -0,0 +1,3 @@
+{
+  "api_base_url": "http://192.168.229.128:8000"
+}

config/server_config.qrc

@@ -0,0 +1,5 @@
+<RCC>
+  <qresource prefix="/simcae">
+    <file>server_config.json</file>
+  </qresource>
+</RCC>

i18n/ReadMe.txt

@@ -0,0 +1,176 @@
+客户端国际化说明
+================
+
+这份文档说明 Qt 国际化文件怎么维护，以及哪些步骤是自动的、哪些步骤需要你手动做。
+
+先看结论
+========
+
+Visual Studio 和 PowerShell 二选一即可。
+
+- Visual Studio 是图形界面入口。
+- PowerShell 是命令行入口。
+- 两者最终调用的是同一套 CMake 目标，不是两套流程。
+
+最重要的规则：
+
+1. 普通“全部重新生成”会自动把已有的 update-client_zh_CN.ts 编译成 update-client_zh_CN.qm。
+2. 普通“全部重新生成”不会自动扫描源码生成新的 update-client_zh_CN.ts 条目。
+3. 如果新增了 QObject::tr(...)、QCoreApplication::translate(...) 这类新文案，必须先手动生成一次 update_client_lupdate。
+4. 你编辑完 update-client_zh_CN.ts 后，再“全部重新生成”，CMake 会自动生成 .qm，并通过 qrc 打进程序。
+
+文件说明
+========
+
+1. update-client_zh_CN.ts
+   翻译源文件，XML 格式。新增或修改代码里的 tr()/translate() 文案后，需要更新这个文件，再补中文翻译。
+
+2. update-client_zh_CN.qm
+   Qt 运行时加载的二进制翻译文件。它由 .ts 编译生成，不要手工编辑。
+
+3. update-client.qrc
+   Qt 资源文件。它会把 update-client_zh_CN.qm 编进 Launcher、Updater、Bootstrap、MainApp，不需要把 .qm 单独放到安装目录。
+
+日常编译：没有新增界面文字
+==========================
+
+这种情况最简单。
+
+你只是改了普通 C++ 代码，或者只是修改了 update-client_zh_CN.ts 里已有条目的中文翻译：
+
+Visual Studio：
+
+```text
+选择 x64 Release 或 x64 Debug -> 全部重新生成
+```
+
+PowerShell 等价命令：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+cmake --build --preset x64-release
+```
+
+这时 CMake 会自动执行 lrelease：
+
+```text
+update-client_zh_CN.ts -> update-client_zh_CN.qm
+```
+
+然后 .qm 会通过 update-client.qrc 打进 exe。
+
+新增界面文字后的完整流程
+========================
+
+如果代码里新增了这些文字：
+
+```cpp
+QObject::tr("New message")
+QCoreApplication::translate("Context", "New message")
+```
+
+只点“全部重新生成”是不够的。因为“全部重新生成”不会自动扫描源码，把新 source 写进 .ts。
+
+正确流程是：
+
+1. 先更新 .ts 文件。
+
+   Visual Studio：
+
+   ```text
+   在 CMake 目标里找到 update_client_lupdate，然后生成这个目标。
+   ```
+
+   PowerShell 等价命令：
+
+   ```powershell
+   cd C:\Users\admin\Desktop\update-client
+   cmake --build --preset x64-release --target update_client_lupdate
+   ```
+
+   这一步会扫描 Common、Bootstrap、Launcher、Updater、MainApp 里的 cpp/h 文件，把新增的 tr()/translate() 文案写入：
+
+   ```text
+   i18n/update-client_zh_CN.ts
+   ```
+
+2. 编辑 update-client_zh_CN.ts。
+
+   找到新增的 `<source>...</source>`，把对应 `<translation>...</translation>` 补成中文。
+
+   可以用 Qt Linguist 打开，也可以直接用文本编辑器编辑 XML。
+
+3. 再重新生成程序。
+
+   Visual Studio：
+
+   ```text
+   全部重新生成
+   ```
+
+   PowerShell 等价命令：
+
+   ```powershell
+   cmake --build --preset x64-release
+   ```
+
+   这一步会自动做：
+
+   ```text
+   update-client_zh_CN.ts -> update-client_zh_CN.qm -> update-client.qrc -> exe
+   ```
+
+如果只想单独生成 .qm
+====================
+
+一般不需要单独做。普通编译会自动生成 .qm。
+
+如果你只是想检查 .ts 能不能正常编译成 .qm，可以单独生成这个目标：
+
+Visual Studio：
+
+```text
+生成 CMake 目标 update_client_translations
+```
+
+PowerShell：
+
+```powershell
+cd C:\Users\admin\Desktop\update-client
+cmake --build --preset x64-release --target update_client_translations
+```
+
+常见问题
+========
+
+1. 新增了 tr()，为什么程序里没有中文？
+
+   通常是少做了 update_client_lupdate。新增文案后必须先更新 .ts，再补中文，再重新生成。
+
+2. 我只改了 .ts 里的中文，还要跑 update_client_lupdate 吗？
+
+   不需要。直接“全部重新生成”即可，CMake 会自动重新生成 .qm。
+
+3. update-client_zh_CN.qm 要不要交付到安装目录？
+
+   不需要。它已经通过 update-client.qrc 编进 exe。
+
+4. 代码里能不能直接写中文？
+
+   不建议。界面文字统一写英文 source，然后在 .ts 里翻译成中文。
+
+5. Visual Studio 或 CMake 找不到 lupdate / lrelease 怎么办？
+
+   通常是 Qt 环境变量没配好。确认 CMAKE_PREFIX_PATH 或 Qt5_DIR 指向 Qt 目录。
+
+   Windows 示例：
+
+   ```powershell
+   [Environment]::SetEnvironmentVariable("CMAKE_PREFIX_PATH", "C:\Qt\5.15.2\msvc2019_64", "User")
+   ```
+
+   Linux 示例：
+
+   ```bash
+   sudo apt install -y qttools5-dev-tools
+   ```

i18n/update-client.qrc

@@ -0,0 +1,5 @@
+<RCC>
+  <qresource prefix="/i18n">
+    <file>update-client_zh_CN.qm</file>
+  </qresource>
+</RCC>

scripts/ReadMe.txt

@@ -0,0 +1,59 @@
+客户端脚本说明
+==============
+
+本目录保存 update-client 的辅助脚本。项目根目录只保留源码、CMake 入口、Docs 和配置模板，脚本统一放在这里。
+
+脚本列表：
+
+1. package-sdk.ps1
+   在 Windows 上生成给其他软件接入用的 UpdateClientSDK 包。
+   注意：SDK 包只面向运行接入，不包含 config/server_config.json 和 config/server_config.qrc。
+   服务端地址必须在打包前写入源码目录 config/server_config.json，并重新编译进 Launcher/Updater。
+
+2. package-client.ps1
+   在 Windows 上生成某个具体产品的最终客户端发布包。
+
+3. install-sdk.ps1
+   将 SDK 运行时复制到业务软件 Release 目录。
+
+4. package-sdk.sh
+   在 Linux 上生成给其他软件接入用的 UpdateClientSDK 包，输出 tar.gz。
+
+5. package-client.sh
+   在 Linux 上生成某个具体产品的最终客户端发布包，输出 tar.gz。
+
+推荐在 update-client 根目录执行：
+
+```powershell
+.\scripts\package-sdk.ps1 `
+  -SourceDir .\out\bin\Release `
+  -OutputDir .\dist\UpdateClientSDK `
+  -ZipFile .\dist\UpdateClientSDK.zip `
+  -SdkVersion 0.1.0
+```
+
+```powershell
+.\scripts\package-client.ps1 `
+  -SourceDir .\out\bin\Release `
+  -ConfigFile .\config\app_config.json `
+  -OutputDir .\dist\UpdateClient `
+  -ZipFile .\dist\UpdateClient.zip
+```
+
+Linux 示例：
+
+```bash
+bash ./scripts/package-sdk.sh \
+  --source-dir ./out/linux/bin \
+  --output-dir ./dist/UpdateClientSDK-linux \
+  --archive ./dist/UpdateClientSDK-linux.tar.gz \
+  --sdk-version 0.1.0
+```
+
+```bash
+bash ./scripts/package-client.sh \
+  --source-dir /path/to/SimCAE \
+  --config-file /path/to/SimCAE/bin/config/app_config.json \
+  --output-dir ./dist/UpdateClient-linux \
+  --archive ./dist/UpdateClient-linux.tar.gz
+```

scripts/install-sdk.ps1

@@ -1,74 +1,74 @@
-param(
-    [Parameter(Mandatory=$true)]
-    [string]$SdkRoot,
-
-    [string]$ReleaseDir = (Get-Location).Path,
-
-    [switch]$OverwriteConfig,
-
-    [switch]$IncludeQtRuntime
-)
-
-$ErrorActionPreference = "Stop"
-
-$sdk = (Resolve-Path $SdkRoot).Path
-$release = (Resolve-Path $ReleaseDir).Path
-
-$binDir = Join-Path $sdk "bin"
-$configDir = Join-Path $sdk "config"
-$appConfig = Join-Path $configDir "app_config.json"
-$publicKey = Join-Path $configDir "manifest_public_key.pem"
-
-foreach ($path in @($binDir, $appConfig, $publicKey)) {
-    if (-not (Test-Path $path)) {
-        throw "SDK file is missing: $path"
-    }
-}
-
-function Test-IsQtRuntimeItem {
-    param([System.IO.FileSystemInfo]$Item)
-
-    if ($IncludeQtRuntime) {
-        return $false
-    }
-
-    if ($Item.PSIsContainer) {
-        return $Item.Name -in @(
-            "bearer",
-            "iconengines",
-            "imageformats",
-            "platforms",
-            "styles",
-            "translations"
-        )
-    }
-
-    return (
-        $Item.Name -match '^Qt5.*\.dll$' -or
-        $Item.Name -in @(
-            "libEGL.dll",
-            "libGLESv2.dll",
-            "opengl32sw.dll",
-            "d3dcompiler_47.dll"
-        )
-    )
-}
-
-Get-ChildItem $binDir -Force | Where-Object {
-    -not (Test-IsQtRuntimeItem $_)
-} | Copy-Item -Destination $release -Recurse -Force
-
-$targetConfigDir = Join-Path $release "config"
-New-Item $targetConfigDir -ItemType Directory -Force | Out-Null
-
-$targetAppConfig = Join-Path $targetConfigDir "app_config.json"
-if ((-not (Test-Path $targetAppConfig)) -or $OverwriteConfig) {
-    Copy-Item $appConfig $targetAppConfig -Force
-} else {
-    Write-Host "Keep existing config/app_config.json. Use -OverwriteConfig to replace it."
-}
-
-Copy-Item $publicKey (Join-Path $targetConfigDir "manifest_public_key.pem") -Force
-
-Write-Host "SDK files installed to: $release"
-Write-Host "Next: edit config/app_config.json, then start Launcher.exe."
+param(
+    [Parameter(Mandatory=$true)]
+    [string]$SdkRoot,
+
+    [string]$ReleaseDir = (Get-Location).Path,
+
+    [switch]$OverwriteConfig,
+
+    [switch]$IncludeQtRuntime
+)
+
+$ErrorActionPreference = "Stop"
+
+$sdk = (Resolve-Path $SdkRoot).Path
+$release = (Resolve-Path $ReleaseDir).Path
+
+$binDir = Join-Path $sdk "bin"
+$configDir = Join-Path $sdk "config"
+$appConfig = Join-Path $configDir "app_config.json"
+$publicKey = Join-Path $configDir "manifest_public_key.pem"
+
+foreach ($path in @($binDir, $appConfig, $publicKey)) {
+    if (-not (Test-Path $path)) {
+        throw "SDK file is missing: $path"
+    }
+}
+
+function Test-IsQtRuntimeItem {
+    param([System.IO.FileSystemInfo]$Item)
+
+    if ($IncludeQtRuntime) {
+        return $false
+    }
+
+    if ($Item.PSIsContainer) {
+        return $Item.Name -in @(
+            "bearer",
+            "iconengines",
+            "imageformats",
+            "platforms",
+            "styles",
+            "translations"
+        )
+    }
+
+    return (
+        $Item.Name -match '^Qt5.*\.dll$' -or
+        $Item.Name -in @(
+            "libEGL.dll",
+            "libGLESv2.dll",
+            "opengl32sw.dll",
+            "d3dcompiler_47.dll"
+        )
+    )
+}
+
+Get-ChildItem $binDir -Force | Where-Object {
+    -not (Test-IsQtRuntimeItem $_)
+} | Copy-Item -Destination $release -Recurse -Force
+
+$targetConfigDir = Join-Path $release "config"
+New-Item $targetConfigDir -ItemType Directory -Force | Out-Null
+
+$targetAppConfig = Join-Path $targetConfigDir "app_config.json"
+if ((-not (Test-Path $targetAppConfig)) -or $OverwriteConfig) {
+    Copy-Item $appConfig $targetAppConfig -Force
+} else {
+    Write-Host "Keep existing config/app_config.json. Use -OverwriteConfig to replace it."
+}
+
+Copy-Item $publicKey (Join-Path $targetConfigDir "manifest_public_key.pem") -Force
+
+Write-Host "SDK files installed to: $release"
+Write-Host "Next: edit config/app_config.json, then start Launcher.exe."

scripts/package-client.ps1

@@ -1,34 +1,45 @@
 param(
-    [string]$SourceDir = "$PSScriptRoot/out/bin",
+    [string]$SourceDir = "",
     [Parameter(Mandatory = $true)]
     [string]$ConfigFile,
-    [string]$OutputDir = "$PSScriptRoot/dist/UpdateClient",
-    [string]$ZipFile = "$PSScriptRoot/dist/UpdateClient.zip"
+    [string]$OutputDir = "",
+    [string]$ZipFile = ""
 )
 
 $ErrorActionPreference = "Stop"
 
+$RepoRoot = Split-Path -Parent $PSScriptRoot
+if ([string]::IsNullOrWhiteSpace($SourceDir)) {
+    $SourceDir = Join-Path $RepoRoot "out/bin/Release"
+}
+if ([string]::IsNullOrWhiteSpace($OutputDir)) {
+    $OutputDir = Join-Path $RepoRoot "dist/UpdateClient"
+}
+if ([string]::IsNullOrWhiteSpace($ZipFile)) {
+    $ZipFile = Join-Path $RepoRoot "dist/UpdateClient.zip"
+}
+
 $source = (Resolve-Path $SourceDir).Path
 $config = (Resolve-Path $ConfigFile).Path
 $settings = Get-Content $config -Raw -Encoding UTF8 | ConvertFrom-Json
-
-function Normalize-RelativePath([string]$PathValue) {
-    return ($PathValue -replace '\\', '/').Trim('/')
-}
-
-function Get-RelativePathUnderSource([string]$FullPath, [string]$Fallback) {
-    $full = (Resolve-Path $FullPath).Path
-    if ($full.StartsWith($source, [System.StringComparison]::OrdinalIgnoreCase)) {
-        return Normalize-RelativePath ($full.Substring($source.Length).TrimStart('\', '/'))
-    }
-    return Normalize-RelativePath $Fallback
-}
-
-$configRelativePath = Get-RelativePathUnderSource $config "config/app_config.json"
-$configRelativeParent = Split-Path $configRelativePath -Parent
-$runtimeDirRelative = Normalize-RelativePath (Split-Path $configRelativeParent -Parent)
-if ($runtimeDirRelative -eq ".") { $runtimeDirRelative = "" }
-
+
+function Normalize-RelativePath([string]$PathValue) {
+    return ($PathValue -replace '\\', '/').Trim('/')
+}
+
+function Get-RelativePathUnderSource([string]$FullPath, [string]$Fallback) {
+    $full = (Resolve-Path $FullPath).Path
+    if ($full.StartsWith($source, [System.StringComparison]::OrdinalIgnoreCase)) {
+        return Normalize-RelativePath ($full.Substring($source.Length).TrimStart('\', '/'))
+    }
+    return Normalize-RelativePath $Fallback
+}
+
+$configRelativePath = Get-RelativePathUnderSource $config "config/app_config.json"
+$configRelativeParent = Split-Path $configRelativePath -Parent
+$runtimeDirRelative = Normalize-RelativePath (Split-Path $configRelativeParent -Parent)
+if ($runtimeDirRelative -eq ".") { $runtimeDirRelative = "" }
+
 function Join-RelativePath([string]$Base, [string]$Child) {
     $baseNorm = Normalize-RelativePath $Base
     $childNorm = Normalize-RelativePath $Child
@@ -37,102 +48,126 @@ function Join-RelativePath([string]$Base, [string]$Child) {
     return "$baseNorm/$childNorm"
 }
 
+function Get-InstallDirectoryId([string]$RuntimeDir) {
+    $normalized = ([IO.Path]::GetFullPath($RuntimeDir) -replace '\\', '/').TrimEnd('/')
+    $sha = [System.Security.Cryptography.SHA256]::Create()
+    try {
+        $bytes = [System.Text.Encoding]::UTF8.GetBytes($normalized)
+        $hash = $sha.ComputeHash($bytes)
+        return -join ($hash | ForEach-Object { $_.ToString("x2") })
+    } finally {
+        $sha.Dispose()
+    }
+}
+
+function Get-UserDataManifestCandidate([string]$RuntimeDir, [string]$ManifestName) {
+    $localData = [Environment]::GetFolderPath("LocalApplicationData")
+    if ([string]::IsNullOrWhiteSpace($localData)) { return "" }
+    $installId = Get-InstallDirectoryId $RuntimeDir
+    return Join-Path $localData "Marsco\UpdateClientSDK\installations\$installId\update\manifest_cache\$ManifestName"
+}
+
 $requiredFields = @(
-    "app_id", "channel", "api_base_url", "current_version",
+    "app_id", "channel", "current_version",
     "client_token", "launch_token", "license_key",
     "main_executable", "launcher_executable", "updater_executable", "bootstrap_executable"
 )
-foreach ($field in $requiredFields) {
-    if (-not $settings.$field) {
-        throw "Config file is missing required field: $field"
-    }
-}
-
-$mainExecutable = Normalize-RelativePath $settings.main_executable
-$launcherExecutable = Normalize-RelativePath $settings.launcher_executable
-$updaterExecutable = Normalize-RelativePath $settings.updater_executable
-$bootstrapExecutable = Normalize-RelativePath $settings.bootstrap_executable
-
-$requiredFiles = @(
-    (Join-RelativePath $runtimeDirRelative $mainExecutable),
-    (Join-RelativePath $runtimeDirRelative $launcherExecutable),
-    (Join-RelativePath $runtimeDirRelative $updaterExecutable),
-    (Join-RelativePath $runtimeDirRelative $bootstrapExecutable)
-)
-foreach ($name in $requiredFiles) {
-    $nativeName = $name -replace '/', [IO.Path]::DirectorySeparatorChar
-    if (-not (Test-Path (Join-Path $source $nativeName))) {
-        throw "Source directory is missing required file: $name"
-    }
-}
-
-$debugArtifacts = Get-ChildItem $source -Recurse -File | Where-Object {
-    $_.Name -match '^(Qt5.*d|qwindowsd|libEGLd|libGLESv2d|msvcp.*d|vcruntime.*d)\.dll$' -or
-    $_.Extension -in @('.pdb', '.ilk')
-}
+foreach ($field in $requiredFields) {
+    if (-not $settings.$field) {
+        throw "Config file is missing required field: $field"
+    }
+}
+
+$mainExecutable = Normalize-RelativePath $settings.main_executable
+$launcherExecutable = Normalize-RelativePath $settings.launcher_executable
+$updaterExecutable = Normalize-RelativePath $settings.updater_executable
+$bootstrapExecutable = Normalize-RelativePath $settings.bootstrap_executable
+
+$requiredFiles = @(
+    (Join-RelativePath $runtimeDirRelative $mainExecutable),
+    (Join-RelativePath $runtimeDirRelative $launcherExecutable),
+    (Join-RelativePath $runtimeDirRelative $updaterExecutable),
+    (Join-RelativePath $runtimeDirRelative $bootstrapExecutable)
+)
+foreach ($name in $requiredFiles) {
+    $nativeName = $name -replace '/', [IO.Path]::DirectorySeparatorChar
+    if (-not (Test-Path (Join-Path $source $nativeName))) {
+        throw "Source directory is missing required file: $name"
+    }
+}
+
+$debugArtifacts = Get-ChildItem $source -Recurse -File | Where-Object {
+    $_.Name -match '^(Qt5.*d|qwindowsd|libEGLd|libGLESv2d|msvcp.*d|vcruntime.*d)\.dll$' -or
+    $_.Extension -in @('.pdb', '.ilk')
+}
 if ($debugArtifacts) {
-    throw "Source directory contains Debug artifacts. Clean out/bin and rebuild Release first. Example: $($debugArtifacts[0].FullName)"
+    throw "Source directory contains Debug artifacts. Clean the Release output directory and rebuild Release first. Example: $($debugArtifacts[0].FullName)"
 }
-
-$expectedMainPath = Join-RelativePath $runtimeDirRelative $mainExecutable
-$mainLeafName = Split-Path $mainExecutable -Leaf
-$duplicateMain = Get-ChildItem $source -Recurse -File -Filter $mainLeafName | Where-Object {
-    $relative = Normalize-RelativePath ($_.FullName.Substring($source.Length).TrimStart('\', '/'))
-    $relative -ne $expectedMainPath
-} | Select-Object -First 1
-if ($duplicateMain) {
-    throw "Source directory contains a duplicate main executable outside $expectedMainPath. Use a clean Release root directory: $($duplicateMain.FullName)"
-}
-
+
+$expectedMainPath = Join-RelativePath $runtimeDirRelative $mainExecutable
+$mainLeafName = Split-Path $mainExecutable -Leaf
+$duplicateMain = Get-ChildItem $source -Recurse -File -Filter $mainLeafName | Where-Object {
+    $relative = Normalize-RelativePath ($_.FullName.Substring($source.Length).TrimStart('\', '/'))
+    $relative -ne $expectedMainPath
+} | Select-Object -First 1
+if ($duplicateMain) {
+    throw "Source directory contains a duplicate main executable outside $expectedMainPath. Use a clean Release root directory: $($duplicateMain.FullName)"
+}
+
 $manifestName = "manifest_$($settings.current_version).json"
+$runtimeDirAbsolute = if ([string]::IsNullOrWhiteSpace($runtimeDirRelative)) {
+    $source
+} else {
+    Join-Path $source ($runtimeDirRelative -replace '/', [IO.Path]::DirectorySeparatorChar)
+}
 $sourceManifestRelative = Join-RelativePath $runtimeDirRelative "update/manifest_cache/$manifestName"
-$sourceManifest = Join-Path $source ($sourceManifestRelative -replace '/', [IO.Path]::DirectorySeparatorChar)
-if (-not (Test-Path $sourceManifest)) {
-    $legacySourceManifest = Join-Path $source "update/manifest_cache/$manifestName"
-    if (Test-Path $legacySourceManifest) {
-        $sourceManifest = $legacySourceManifest
-    }
+$manifestCandidates = @(
+    (Get-UserDataManifestCandidate $runtimeDirAbsolute $manifestName),
+    (Join-Path $source ($sourceManifestRelative -replace '/', [IO.Path]::DirectorySeparatorChar)),
+    (Join-Path $source "update/manifest_cache/$manifestName")
+) | Where-Object { -not [string]::IsNullOrWhiteSpace($_) }
+$sourceManifest = $manifestCandidates | Where-Object { Test-Path $_ } | Select-Object -First 1
+if (-not $sourceManifest -or -not (Test-Path $sourceManifest)) {
+    $searched = ($manifestCandidates | ForEach-Object { "  - $_" }) -join [Environment]::NewLine
+    throw "Missing signed Manifest cache for current version: $manifestName. Complete online update/verification for this version before packaging. Searched paths:$([Environment]::NewLine)$searched"
 }
-if (-not (Test-Path $sourceManifest)) {
-    throw "Missing signed Manifest cache for current version: $sourceManifest. Complete online update/verification for this version before packaging."
-}
-
-if (Test-Path $OutputDir) {
-    Remove-Item $OutputDir -Recurse -Force
-}
-New-Item $OutputDir -ItemType Directory -Force | Out-Null
-
-Get-ChildItem $source -Force | Where-Object {
-    $_.Name -notin @("update", "update_temp")
-} | Copy-Item -Destination $OutputDir -Recurse -Force
-
-$outputRuntimeUpdateDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update") -replace '/', [IO.Path]::DirectorySeparatorChar)
-if (Test-Path $outputRuntimeUpdateDir) {
-    Remove-Item $outputRuntimeUpdateDir -Recurse -Force
-}
-$outputRuntimeTempDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update_temp") -replace '/', [IO.Path]::DirectorySeparatorChar)
-if (Test-Path $outputRuntimeTempDir) {
-    Remove-Item $outputRuntimeTempDir -Recurse -Force
-}
-
-$outputConfigPath = Join-Path $OutputDir ($configRelativePath -replace '/', [IO.Path]::DirectorySeparatorChar)
-$outputConfigDir = Split-Path $outputConfigPath -Parent
-New-Item $outputConfigDir -ItemType Directory -Force | Out-Null
-Copy-Item $config $outputConfigPath -Force
-
-@("client_identity.dat", "local_state.json", "version_policy.dat") | ForEach-Object {
-    $runtimeFile = Join-Path $outputConfigDir $_
-    if (Test-Path $runtimeFile) { Remove-Item $runtimeFile -Force }
-}
-
-$manifestDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update/manifest_cache") -replace '/', [IO.Path]::DirectorySeparatorChar)
-New-Item $manifestDir -ItemType Directory -Force | Out-Null
-Copy-Item $sourceManifest (Join-Path $manifestDir $manifestName) -Force
-
-$zipParent = Split-Path $ZipFile -Parent
-New-Item $zipParent -ItemType Directory -Force | Out-Null
-if (Test-Path $ZipFile) { Remove-Item $ZipFile -Force }
-Compress-Archive -Path (Join-Path $OutputDir "*") -DestinationPath $ZipFile -CompressionLevel Optimal
-
-Write-Host "Package directory: $OutputDir"
-Write-Host "ZIP file: $ZipFile"
+
+if (Test-Path $OutputDir) {
+    Remove-Item $OutputDir -Recurse -Force
+}
+New-Item $OutputDir -ItemType Directory -Force | Out-Null
+
+Get-ChildItem $source -Force | Where-Object {
+    $_.Name -notin @("update", "update_temp")
+} | Copy-Item -Destination $OutputDir -Recurse -Force
+
+$outputRuntimeUpdateDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update") -replace '/', [IO.Path]::DirectorySeparatorChar)
+if (Test-Path $outputRuntimeUpdateDir) {
+    Remove-Item $outputRuntimeUpdateDir -Recurse -Force
+}
+$outputRuntimeTempDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update_temp") -replace '/', [IO.Path]::DirectorySeparatorChar)
+if (Test-Path $outputRuntimeTempDir) {
+    Remove-Item $outputRuntimeTempDir -Recurse -Force
+}
+
+$outputConfigPath = Join-Path $OutputDir ($configRelativePath -replace '/', [IO.Path]::DirectorySeparatorChar)
+$outputConfigDir = Split-Path $outputConfigPath -Parent
+New-Item $outputConfigDir -ItemType Directory -Force | Out-Null
+Copy-Item $config $outputConfigPath -Force
+
+@("client_identity.dat", "local_state.json", "version_policy.dat") | ForEach-Object {
+    $runtimeFile = Join-Path $outputConfigDir $_
+    if (Test-Path $runtimeFile) { Remove-Item $runtimeFile -Force }
+}
+
+$manifestDir = Join-Path $OutputDir ((Join-RelativePath $runtimeDirRelative "update/manifest_cache") -replace '/', [IO.Path]::DirectorySeparatorChar)
+New-Item $manifestDir -ItemType Directory -Force | Out-Null
+Copy-Item $sourceManifest (Join-Path $manifestDir $manifestName) -Force
+
+$zipParent = Split-Path $ZipFile -Parent
+New-Item $zipParent -ItemType Directory -Force | Out-Null
+if (Test-Path $ZipFile) { Remove-Item $ZipFile -Force }
+Compress-Archive -Path (Join-Path $OutputDir "*") -DestinationPath $ZipFile -CompressionLevel Optimal
+
+Write-Host "Package directory: $OutputDir"
+Write-Host "ZIP file: $ZipFile"

scripts/package-client.sh

@@ -0,0 +1,234 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+SOURCE_DIR="$REPO_ROOT/out/linux/bin"
+CONFIG_FILE=""
+OUTPUT_DIR="$REPO_ROOT/dist/UpdateClient-linux"
+ARCHIVE_FILE="$REPO_ROOT/dist/UpdateClient-linux.tar.gz"
+SKIP_MANIFEST_CHECK=0
+
+usage() {
+  cat <<'EOF'
+Usage: package-client.sh --config-file FILE [options]
+
+Options:
+  --source-dir DIR          Release/install root to package. Default: ./out/linux/bin
+  --config-file FILE        app_config.json used by this client package. Required.
+  --output-dir DIR          Output directory. Default: ./dist/UpdateClient-linux
+  --archive FILE            Output tar.gz. Default: ./dist/UpdateClient-linux.tar.gz
+  --skip-manifest-check     Skip current-version manifest cache check.
+  -h, --help                Show this help.
+EOF
+}
+
+normalize_relative_path() {
+  local value="${1:-}"
+  value="${value//\\//}"
+  value="${value#/}"
+  value="${value%/}"
+  printf '%s' "$value"
+}
+
+join_relative_path() {
+  local base
+  local child
+  base="$(normalize_relative_path "${1:-}")"
+  child="$(normalize_relative_path "${2:-}")"
+  if [[ -z "$base" ]]; then printf '%s' "$child"; return; fi
+  if [[ -z "$child" ]]; then printf '%s' "$base"; return; fi
+  printf '%s/%s' "$base" "$child"
+}
+
+json_value() {
+  python3 - "$CONFIG_FILE" "$1" <<'PY'
+import json
+import sys
+with open(sys.argv[1], "r", encoding="utf-8-sig") as f:
+    data = json.load(f)
+value = data.get(sys.argv[2], "")
+print("" if value is None else value)
+PY
+}
+
+relative_to_source() {
+  local full="$1"
+  local fallback="$2"
+  python3 - "$SOURCE_DIR" "$full" "$fallback" <<'PY'
+import os
+import sys
+source = os.path.realpath(sys.argv[1])
+full = os.path.realpath(sys.argv[2])
+fallback = sys.argv[3]
+try:
+    rel = os.path.relpath(full, source)
+except ValueError:
+    rel = fallback
+if rel.startswith(".."):
+    rel = fallback
+print(rel.replace(os.sep, "/").strip("/"))
+PY
+}
+
+install_directory_id() {
+  python3 - "$1" <<'PY'
+import hashlib
+import os
+import sys
+
+value = os.path.realpath(sys.argv[1]).replace(os.sep, "/").rstrip("/")
+print(hashlib.sha256(value.encode("utf-8")).hexdigest())
+PY
+}
+
+user_data_manifest_candidate() {
+  local runtime_dir="$1"
+  local manifest_name="$2"
+  local data_home="${XDG_DATA_HOME:-$HOME/.local/share}"
+  local install_id
+  install_id="$(install_directory_id "$runtime_dir")"
+  printf '%s/Marsco/UpdateClientSDK/installations/%s/update/manifest_cache/%s' \
+    "$data_home" "$install_id" "$manifest_name"
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --source-dir) SOURCE_DIR="$2"; shift 2 ;;
+    --config-file) CONFIG_FILE="$2"; shift 2 ;;
+    --output-dir) OUTPUT_DIR="$2"; shift 2 ;;
+    --archive|--tar-file|--zip-file) ARCHIVE_FILE="$2"; shift 2 ;;
+    --skip-manifest-check) SKIP_MANIFEST_CHECK=1; shift ;;
+    -h|--help) usage; exit 0 ;;
+    *) echo "Unknown option: $1" >&2; usage >&2; exit 2 ;;
+  esac
+done
+
+if [[ -z "$CONFIG_FILE" ]]; then
+  echo "--config-file is required." >&2
+  usage >&2
+  exit 2
+fi
+
+SOURCE_DIR="$(realpath "$SOURCE_DIR")"
+CONFIG_FILE="$(realpath "$CONFIG_FILE")"
+OUTPUT_DIR="$(realpath -m "$OUTPUT_DIR")"
+ARCHIVE_FILE="$(realpath -m "$ARCHIVE_FILE")"
+
+for field in app_id channel current_version client_token launch_token license_key main_executable launcher_executable updater_executable bootstrap_executable; do
+  if [[ -z "$(json_value "$field")" ]]; then
+    echo "Config file is missing required field: $field" >&2
+    exit 1
+  fi
+done
+
+CONFIG_RELATIVE_PATH="$(relative_to_source "$CONFIG_FILE" "config/app_config.json")"
+CONFIG_RELATIVE_PARENT="$(dirname "$CONFIG_RELATIVE_PATH")"
+[[ "$CONFIG_RELATIVE_PARENT" == "." ]] && CONFIG_RELATIVE_PARENT=""
+RUNTIME_DIR_RELATIVE="$(normalize_relative_path "$(dirname "$CONFIG_RELATIVE_PARENT")")"
+[[ "$RUNTIME_DIR_RELATIVE" == "." ]] && RUNTIME_DIR_RELATIVE=""
+
+MAIN_EXECUTABLE="$(normalize_relative_path "$(json_value main_executable)")"
+LAUNCHER_EXECUTABLE="$(normalize_relative_path "$(json_value launcher_executable)")"
+UPDATER_EXECUTABLE="$(normalize_relative_path "$(json_value updater_executable)")"
+BOOTSTRAP_EXECUTABLE="$(normalize_relative_path "$(json_value bootstrap_executable)")"
+CURRENT_VERSION="$(json_value current_version)"
+
+for required in \
+  "$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$MAIN_EXECUTABLE")" \
+  "$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$LAUNCHER_EXECUTABLE")" \
+  "$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$UPDATER_EXECUTABLE")" \
+  "$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$BOOTSTRAP_EXECUTABLE")"; do
+  if [[ ! -f "$SOURCE_DIR/$required" ]]; then
+    echo "Source directory is missing required file: $required" >&2
+    exit 1
+  fi
+done
+
+DEBUG_ARTIFACT="$(find "$SOURCE_DIR" -type f \( -name '*.pdb' -o -name '*.ilk' -o -name '*d.dll' \) -print -quit)"
+if [[ -n "$DEBUG_ARTIFACT" ]]; then
+  echo "Source directory contains Debug artifacts. Use a clean Release root directory." >&2
+  echo "Example: $DEBUG_ARTIFACT" >&2
+  exit 1
+fi
+
+EXPECTED_MAIN_PATH="$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$MAIN_EXECUTABLE")"
+MAIN_LEAF="$(basename "$MAIN_EXECUTABLE")"
+DUPLICATE_MAIN="$({ find "$SOURCE_DIR" -type f -name "$MAIN_LEAF" | while read -r item; do
+  rel="$(python3 - "$SOURCE_DIR" "$item" <<'PY'
+import os, sys
+print(os.path.relpath(os.path.realpath(sys.argv[2]), os.path.realpath(sys.argv[1])).replace(os.sep, "/"))
+PY
+)"
+  [[ "$rel" != "$EXPECTED_MAIN_PATH" ]] && { echo "$item"; break; }
+done; } || true)"
+if [[ -n "$DUPLICATE_MAIN" ]]; then
+  echo "Source directory contains a duplicate main executable outside $EXPECTED_MAIN_PATH: $DUPLICATE_MAIN" >&2
+  exit 1
+fi
+
+MANIFEST_NAME="manifest_${CURRENT_VERSION}.json"
+if [[ -z "$RUNTIME_DIR_RELATIVE" ]]; then
+  RUNTIME_DIR_ABSOLUTE="$SOURCE_DIR"
+else
+  RUNTIME_DIR_ABSOLUTE="$SOURCE_DIR/$RUNTIME_DIR_RELATIVE"
+fi
+MANIFEST_CANDIDATES=(
+  "$(user_data_manifest_candidate "$RUNTIME_DIR_ABSOLUTE" "$MANIFEST_NAME")"
+  "$SOURCE_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "update/manifest_cache/$MANIFEST_NAME")"
+  "$SOURCE_DIR/update/manifest_cache/$MANIFEST_NAME"
+)
+SOURCE_MANIFEST=""
+for candidate in "${MANIFEST_CANDIDATES[@]}"; do
+  if [[ -f "$candidate" ]]; then
+    SOURCE_MANIFEST="$candidate"
+    break
+  fi
+done
+if [[ "$SKIP_MANIFEST_CHECK" -eq 0 && ! -f "$SOURCE_MANIFEST" ]]; then
+  echo "Missing signed Manifest cache for current version: $MANIFEST_NAME." >&2
+  echo "Complete online update/verification for this version before packaging. Searched paths:" >&2
+  printf '  - %s\n' "${MANIFEST_CANDIDATES[@]}" >&2
+  exit 1
+fi
+
+rm -rf "$OUTPUT_DIR"
+mkdir -p "$OUTPUT_DIR"
+shopt -s dotglob nullglob
+for item in "$SOURCE_DIR"/*; do
+  base="$(basename "$item")"
+  case "$base" in
+    update|update_temp) ;;
+    *) cp -a "$item" "$OUTPUT_DIR/" ;;
+  esac
+done
+shopt -u dotglob nullglob
+
+rm -rf "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "update")"
+rm -rf "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "update_temp")"
+
+OUTPUT_CONFIG_PATH="$OUTPUT_DIR/$CONFIG_RELATIVE_PATH"
+mkdir -p "$(dirname "$OUTPUT_CONFIG_PATH")"
+cp "$CONFIG_FILE" "$OUTPUT_CONFIG_PATH"
+rm -f "$(dirname "$OUTPUT_CONFIG_PATH")/client_identity.dat" \
+      "$(dirname "$OUTPUT_CONFIG_PATH")/local_state.json" \
+      "$(dirname "$OUTPUT_CONFIG_PATH")/version_policy.dat"
+
+if [[ -f "$SOURCE_MANIFEST" ]]; then
+  MANIFEST_DIR="$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "update/manifest_cache")"
+  mkdir -p "$MANIFEST_DIR"
+  cp "$SOURCE_MANIFEST" "$MANIFEST_DIR/$MANIFEST_NAME"
+fi
+
+chmod +x "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$LAUNCHER_EXECUTABLE")" \
+         "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$UPDATER_EXECUTABLE")" \
+         "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$BOOTSTRAP_EXECUTABLE")" \
+         "$OUTPUT_DIR/$(join_relative_path "$RUNTIME_DIR_RELATIVE" "$MAIN_EXECUTABLE")" 2>/dev/null || true
+
+mkdir -p "$(dirname "$ARCHIVE_FILE")"
+rm -f "$ARCHIVE_FILE"
+tar -C "$OUTPUT_DIR" -czf "$ARCHIVE_FILE" .
+
+echo "Package directory: $OUTPUT_DIR"
+echo "Archive file: $ARCHIVE_FILE"

scripts/package-sdk.ps1

@@ -1,116 +1,159 @@
 param(
-    [string]$SourceDir = "$PSScriptRoot/out/bin",
-    [string]$OutputDir = "$PSScriptRoot/dist/UpdateClientSDK",
-    [string]$ZipFile = "$PSScriptRoot/dist/UpdateClientSDK.zip",
+    [string]$SourceDir = "",
+    [string]$OutputDir = "",
+    [string]$ZipFile = "",
     [string]$SdkVersion = "0.1.0",
-    [string]$ExampleConfig = "$PSScriptRoot/config/app_config.example.json",
+    [string]$ExampleConfig = "",
     [switch]$IncludeDemoMainApp,
     [switch]$IncludeQtRuntime
 )
 
 $ErrorActionPreference = "Stop"
 
-$source = (Resolve-Path $SourceDir).Path
-$exampleConfigPath = (Resolve-Path $ExampleConfig).Path
-
-$requiredFiles = @("Launcher.exe", "Updater.exe", "Bootstrap.exe")
-foreach ($name in $requiredFiles) {
-    $path = Join-Path $source $name
-    if (-not (Test-Path $path)) {
-        throw "SDK source directory is missing required file: $path"
-    }
+$RepoRoot = Split-Path -Parent $PSScriptRoot
+if ([string]::IsNullOrWhiteSpace($SourceDir)) {
+    $SourceDir = Join-Path $RepoRoot "out/bin/Release"
+}
+if ([string]::IsNullOrWhiteSpace($OutputDir)) {
+    $OutputDir = Join-Path $RepoRoot "dist/UpdateClientSDK"
+}
+if ([string]::IsNullOrWhiteSpace($ZipFile)) {
+    $ZipFile = Join-Path $RepoRoot "dist/UpdateClientSDK.zip"
+}
+if ([string]::IsNullOrWhiteSpace($ExampleConfig)) {
+    $ExampleConfig = Join-Path $RepoRoot "config/app_config.example.json"
 }
 
+$source = (Resolve-Path $SourceDir).Path
+$exampleConfigPath = (Resolve-Path $ExampleConfig).Path
+
+$requiredFiles = @("Launcher.exe", "Updater.exe", "Bootstrap.exe")
+foreach ($name in $requiredFiles) {
+    $path = Join-Path $source $name
+    if (-not (Test-Path $path)) {
+        throw "SDK source directory is missing required file: $path"
+    }
+}
+
 $publicKeyCandidates = @(
     (Join-Path $source "config/manifest_public_key.pem"),
     (Join-Path $source "manifest_public_key.pem"),
-    (Join-Path $PSScriptRoot "config/manifest_public_key.pem")
+    (Join-Path $RepoRoot "config/manifest_public_key.pem")
 )
-$publicKey = $publicKeyCandidates | Where-Object { Test-Path $_ } | Select-Object -First 1
-if (-not $publicKey) {
-    throw "manifest_public_key.pem is missing. Prepare the public key that matches the server signing private key."
-}
-
-$debugArtifacts = Get-ChildItem $source -Recurse -File | Where-Object {
-    $_.Name -match '^(Qt5.*d|qwindowsd|libEGLd|libGLESv2d|msvcp.*d|vcruntime.*d)\.dll$' -or
-    $_.Extension -in @('.pdb', '.ilk')
-}
-if ($debugArtifacts) {
-    throw "SDK source directory contains Debug artifacts. Use a clean Release output directory. Example: $($debugArtifacts[0].FullName)"
-}
-
-if (Test-Path $OutputDir) { Remove-Item $OutputDir -Recurse -Force }
-New-Item $OutputDir -ItemType Directory -Force | Out-Null
-
+$publicKey = $publicKeyCandidates | Where-Object { Test-Path $_ } | Select-Object -First 1
+if (-not $publicKey) {
+    throw "manifest_public_key.pem is missing. Prepare the public key that matches the server signing private key."
+}
+
+$debugArtifacts = Get-ChildItem $source -Recurse -File | Where-Object {
+    $_.Name -match '^(Qt5.*d|qwindowsd|libEGLd|libGLESv2d|msvcp.*d|vcruntime.*d)\.dll$' -or
+    $_.Extension -in @('.pdb', '.ilk')
+}
+if ($debugArtifacts) {
+    throw "SDK source directory contains Debug artifacts. Use a clean Release output directory. Example: $($debugArtifacts[0].FullName)"
+}
+
+if (Test-Path $OutputDir) { Remove-Item $OutputDir -Recurse -Force }
+New-Item $OutputDir -ItemType Directory -Force | Out-Null
+
 $binDir = Join-Path $OutputDir "bin"
 $configDir = Join-Path $OutputDir "config"
 $scriptsDir = Join-Path $OutputDir "scripts"
-New-Item $binDir,$configDir,$scriptsDir -ItemType Directory -Force | Out-Null
-
-$excludedTopLevel = @("config", "update", "update_temp", "manifest_public_key.pem")
-if (-not $IncludeDemoMainApp) { $excludedTopLevel += "MainApp.exe" }
-
-if (-not $IncludeQtRuntime) {
-    $excludedTopLevel += @(
-        "bearer",
-        "iconengines",
-        "imageformats",
-        "platforms",
-        "styles",
-        "translations"
-    )
-}
-
-function Test-IsQtRuntimeFile {
-    param([System.IO.FileSystemInfo]$Item)
-
-    if ($IncludeQtRuntime -or $Item.PSIsContainer) {
-        return $false
-    }
-
-    return (
-        $Item.Name -match '^Qt5.*\.dll$' -or
-        $Item.Name -in @(
-            "libEGL.dll",
-            "libGLESv2.dll",
-            "opengl32sw.dll",
-            "d3dcompiler_47.dll"
-        )
-    )
-}
-
-Get-ChildItem $source -Force | Where-Object {
-    $_.Name -notin $excludedTopLevel -and -not (Test-IsQtRuntimeFile $_)
-} | Copy-Item -Destination $binDir -Recurse -Force
-
+$commonDir = Join-Path $OutputDir "Common"
+$docsDir = Join-Path $OutputDir "Docs"
+New-Item $binDir,$configDir,$scriptsDir,$commonDir,$docsDir -ItemType Directory -Force | Out-Null
+
+$excludedTopLevel = @("config", "update", "update_temp", "manifest_public_key.pem")
+if (-not $IncludeDemoMainApp) { $excludedTopLevel += "MainApp.exe" }
+
+if (-not $IncludeQtRuntime) {
+    $excludedTopLevel += @(
+        "bearer",
+        "iconengines",
+        "imageformats",
+        "platforms",
+        "styles",
+        "translations"
+    )
+}
+
+function Test-IsQtRuntimeFile {
+    param([System.IO.FileSystemInfo]$Item)
+
+    if ($IncludeQtRuntime -or $Item.PSIsContainer) {
+        return $false
+    }
+
+    return (
+        $Item.Name -match '^Qt5.*\.dll$' -or
+        $Item.Name -in @(
+            "libEGL.dll",
+            "libGLESv2.dll",
+            "opengl32sw.dll",
+            "d3dcompiler_47.dll"
+        )
+    )
+}
+
+Get-ChildItem $source -Force | Where-Object {
+    $_.Name -notin $excludedTopLevel -and -not (Test-IsQtRuntimeFile $_)
+} | Copy-Item -Destination $binDir -Recurse -Force
+
 Copy-Item $exampleConfigPath (Join-Path $configDir "app_config.json") -Force
 Copy-Item $publicKey (Join-Path $configDir "manifest_public_key.pem") -Force
 
-$wordGuideSource = Get-ChildItem $PSScriptRoot -File -Filter "*.docx" | Where-Object {
-    $_.Name -like "*SDK*.docx" -and $_.Name -notlike "~$*"
-} | Sort-Object Name | Select-Object -First 1
-if (-not $wordGuideSource) {
-    throw "SDK integration Word guide is missing. Expected a *SDK*.docx file in the client directory."
+$commonSourceDir = Join-Path $RepoRoot "Common"
+$commonSourceFiles = @(
+    "ConfigHelper.h",
+    "ConfigHelper.cpp",
+    "TicketHelper.h",
+    "TicketHelper.cpp"
+)
+foreach ($commonFile in $commonSourceFiles) {
+    $commonPath = Join-Path $commonSourceDir $commonFile
+    if (-not (Test-Path $commonPath)) {
+        throw "SDK Common integration source is missing: $commonPath"
+    }
+    Copy-Item $commonPath (Join-Path $commonDir $commonFile) -Force
+}
+
+$docsSourceDir = Join-Path $RepoRoot "Docs"
+if (Test-Path $docsSourceDir) {
+    Copy-Item (Join-Path $docsSourceDir "*") $docsDir -Recurse -Force
 }
-Copy-Item $wordGuideSource.FullName (Join-Path $OutputDir $wordGuideSource.Name) -Force
 
-Copy-Item (Join-Path $PSScriptRoot "package-client.ps1") (Join-Path $scriptsDir "package-client.ps1") -Force
-Copy-Item (Join-Path $PSScriptRoot "package-sdk.ps1") (Join-Path $scriptsDir "package-sdk.ps1") -Force
-Copy-Item (Join-Path $PSScriptRoot "install-sdk.ps1") (Join-Path $scriptsDir "install-sdk.ps1") -Force
-
-@{
-    sdk_version = $SdkVersion
-    generated_at = (Get-Date).ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ")
+$wordGuideSource = @($RepoRoot, $docsSourceDir) |
+    Where-Object { Test-Path $_ } |
+    ForEach-Object { Get-ChildItem $_ -File -Filter "*.docx" } |
+    Where-Object { $_.Name -like "*SDK*.docx" -and $_.Name -notlike "~$*" } |
+    Sort-Object Name |
+    Select-Object -First 1
+if ($wordGuideSource) {
+    Copy-Item $wordGuideSource.FullName (Join-Path $OutputDir $wordGuideSource.Name) -Force
+} else {
+    Write-Warning "SDK Word guide is missing. Continue packaging with Markdown documents in Docs/."
+}
+
+Copy-Item (Join-Path $PSScriptRoot "package-client.ps1") (Join-Path $scriptsDir "package-client.ps1") -Force
+Copy-Item (Join-Path $PSScriptRoot "package-sdk.ps1") (Join-Path $scriptsDir "package-sdk.ps1") -Force
+Copy-Item (Join-Path $PSScriptRoot "install-sdk.ps1") (Join-Path $scriptsDir "install-sdk.ps1") -Force
+
+@{
+    sdk_version = $SdkVersion
+    generated_at = (Get-Date).ToUniversalTime().ToString("yyyy-MM-ddTHH:mm:ssZ")
     sdk_type = "external-updater-runtime"
     required_entry = "Launcher.exe"
     contains_demo_main_app = [bool]$IncludeDemoMainApp
+    docs_entry = "Docs/01-客户端接入打包部署指南.md"
+    word_guide_included = [bool]$wordGuideSource
+    integration_sources = $commonSourceFiles
 } | ConvertTo-Json -Depth 3 | Set-Content (Join-Path $OutputDir "sdk_manifest.json") -Encoding UTF8
-
-$zipParent = Split-Path $ZipFile -Parent
-New-Item $zipParent -ItemType Directory -Force | Out-Null
-if (Test-Path $ZipFile) { Remove-Item $ZipFile -Force }
-Compress-Archive -Path (Join-Path $OutputDir "*") -DestinationPath $ZipFile -CompressionLevel Optimal
-
-Write-Host "SDK directory: $OutputDir"
-Write-Host "SDK zip: $ZipFile"
-Write-Host "SDK version: $SdkVersion"
+
+$zipParent = Split-Path $ZipFile -Parent
+New-Item $zipParent -ItemType Directory -Force | Out-Null
+if (Test-Path $ZipFile) { Remove-Item $ZipFile -Force }
+Compress-Archive -Path (Join-Path $OutputDir "*") -DestinationPath $ZipFile -CompressionLevel Optimal
+
+Write-Host "SDK directory: $OutputDir"
+Write-Host "SDK zip: $ZipFile"
+Write-Host "SDK version: $SdkVersion"

scripts/package-sdk.sh

@@ -0,0 +1,154 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+SOURCE_DIR="$REPO_ROOT/out/linux/bin"
+OUTPUT_DIR="$REPO_ROOT/dist/UpdateClientSDK-linux"
+ARCHIVE_FILE="$REPO_ROOT/dist/UpdateClientSDK-linux.tar.gz"
+SDK_VERSION="0.1.0"
+EXAMPLE_CONFIG="$REPO_ROOT/config/app_config.linux.example.json"
+INCLUDE_DEMO_MAIN_APP=0
+
+usage() {
+  cat <<'EOF'
+Usage: package-sdk.sh [options]
+
+Options:
+  --source-dir DIR       Linux Release output directory. Default: ./out/linux/bin
+  --output-dir DIR       SDK directory to generate. Default: ./dist/UpdateClientSDK-linux
+  --archive FILE         SDK tar.gz path. Default: ./dist/UpdateClientSDK-linux.tar.gz
+  --sdk-version VERSION  SDK version. Default: 0.1.0
+  --example-config FILE  app_config template. Default: ./config/app_config.linux.example.json
+  --include-demo-mainapp Include MainApp demo executable in SDK bin.
+  -h, --help             Show this help.
+EOF
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --source-dir) SOURCE_DIR="$2"; shift 2 ;;
+    --output-dir) OUTPUT_DIR="$2"; shift 2 ;;
+    --archive|--tar-file|--zip-file) ARCHIVE_FILE="$2"; shift 2 ;;
+    --sdk-version) SDK_VERSION="$2"; shift 2 ;;
+    --example-config) EXAMPLE_CONFIG="$2"; shift 2 ;;
+    --include-demo-mainapp) INCLUDE_DEMO_MAIN_APP=1; shift ;;
+    -h|--help) usage; exit 0 ;;
+    *) echo "Unknown option: $1" >&2; usage >&2; exit 2 ;;
+  esac
+done
+
+SOURCE_DIR="$(realpath "$SOURCE_DIR")"
+EXAMPLE_CONFIG="$(realpath "$EXAMPLE_CONFIG")"
+OUTPUT_DIR="$(realpath -m "$OUTPUT_DIR")"
+ARCHIVE_FILE="$(realpath -m "$ARCHIVE_FILE")"
+
+for name in Launcher Updater Bootstrap; do
+  if [[ ! -f "$SOURCE_DIR/$name" ]]; then
+    echo "SDK source directory is missing required file: $SOURCE_DIR/$name" >&2
+    exit 1
+  fi
+done
+
+PUBLIC_KEY=""
+for candidate in \
+  "$SOURCE_DIR/config/manifest_public_key.pem" \
+  "$SOURCE_DIR/manifest_public_key.pem" \
+  "$REPO_ROOT/config/manifest_public_key.pem"; do
+  if [[ -f "$candidate" ]]; then
+    PUBLIC_KEY="$candidate"
+    break
+  fi
+done
+if [[ -z "$PUBLIC_KEY" ]]; then
+  echo "manifest_public_key.pem is missing. Prepare the public key that matches the server signing private key." >&2
+  exit 1
+fi
+
+DEBUG_ARTIFACT="$(find "$SOURCE_DIR" -type f \( -name '*.pdb' -o -name '*.ilk' -o -name '*d.dll' \) -print -quit)"
+if [[ -n "$DEBUG_ARTIFACT" ]]; then
+  echo "SDK source directory contains Debug artifacts. Use a clean Release output directory." >&2
+  echo "Example: $DEBUG_ARTIFACT" >&2
+  exit 1
+fi
+
+rm -rf "$OUTPUT_DIR"
+mkdir -p "$OUTPUT_DIR/bin" "$OUTPUT_DIR/config" "$OUTPUT_DIR/scripts" "$OUTPUT_DIR/Common" "$OUTPUT_DIR/Docs"
+
+shopt -s dotglob nullglob
+for item in "$SOURCE_DIR"/*; do
+  base="$(basename "$item")"
+  case "$base" in
+    config|update|update_temp|manifest_public_key.pem|MainApp)
+      if [[ "$base" == "MainApp" && "$INCLUDE_DEMO_MAIN_APP" -eq 1 ]]; then
+        cp -a "$item" "$OUTPUT_DIR/bin/"
+      fi
+      ;;
+    *)
+      cp -a "$item" "$OUTPUT_DIR/bin/"
+      ;;
+  esac
+done
+shopt -u dotglob nullglob
+
+cp "$EXAMPLE_CONFIG" "$OUTPUT_DIR/config/app_config.json"
+cp "$PUBLIC_KEY" "$OUTPUT_DIR/config/manifest_public_key.pem"
+
+for common_file in ConfigHelper.h ConfigHelper.cpp TicketHelper.h TicketHelper.cpp; do
+  common_path="$REPO_ROOT/Common/$common_file"
+  if [[ ! -f "$common_path" ]]; then
+    echo "SDK Common integration source is missing: $common_path" >&2
+    exit 1
+  fi
+  cp "$common_path" "$OUTPUT_DIR/Common/$common_file"
+done
+
+if [[ -d "$REPO_ROOT/Docs" ]]; then
+  cp -a "$REPO_ROOT/Docs/." "$OUTPUT_DIR/Docs/"
+fi
+
+WORD_GUIDE="$(find "$REPO_ROOT" "$REPO_ROOT/Docs" -maxdepth 1 -type f -name '*SDK*.docx' ! -name '~$*' 2>/dev/null | sort | sed -n '1p')"
+WORD_GUIDE_INCLUDED=false
+if [[ -n "$WORD_GUIDE" ]]; then
+  cp "$WORD_GUIDE" "$OUTPUT_DIR/$(basename "$WORD_GUIDE")"
+  WORD_GUIDE_INCLUDED=true
+else
+  echo "Warning: SDK Word guide is missing. Continue packaging with Markdown documents in Docs/." >&2
+fi
+
+cp "$SCRIPT_DIR/package-sdk.sh" "$OUTPUT_DIR/scripts/package-sdk.sh"
+cp "$SCRIPT_DIR/package-client.sh" "$OUTPUT_DIR/scripts/package-client.sh"
+if [[ -f "$SCRIPT_DIR/install-sdk.ps1" ]]; then cp "$SCRIPT_DIR/install-sdk.ps1" "$OUTPUT_DIR/scripts/install-sdk.ps1"; fi
+if [[ -f "$SCRIPT_DIR/package-sdk.ps1" ]]; then cp "$SCRIPT_DIR/package-sdk.ps1" "$OUTPUT_DIR/scripts/package-sdk.ps1"; fi
+if [[ -f "$SCRIPT_DIR/package-client.ps1" ]]; then cp "$SCRIPT_DIR/package-client.ps1" "$OUTPUT_DIR/scripts/package-client.ps1"; fi
+
+chmod +x "$OUTPUT_DIR/bin/Launcher" "$OUTPUT_DIR/bin/Updater" "$OUTPUT_DIR/bin/Bootstrap" 2>/dev/null || true
+chmod +x "$OUTPUT_DIR/scripts/package-sdk.sh" "$OUTPUT_DIR/scripts/package-client.sh"
+
+cat > "$OUTPUT_DIR/sdk_manifest.json" <<EOF
+{
+  "sdk_version": "$SDK_VERSION",
+  "generated_at": "$(date -u +%Y-%m-%dT%H:%M:%SZ)",
+  "sdk_type": "external-updater-runtime",
+  "platform": "linux",
+  "required_entry": "Launcher",
+  "contains_demo_main_app": $([[ "$INCLUDE_DEMO_MAIN_APP" -eq 1 ]] && echo true || echo false),
+  "docs_entry": "Docs/01-客户端接入打包部署指南.md",
+  "word_guide_included": $WORD_GUIDE_INCLUDED,
+  "integration_sources": [
+    "ConfigHelper.h",
+    "ConfigHelper.cpp",
+    "TicketHelper.h",
+    "TicketHelper.cpp"
+  ]
+}
+EOF
+
+mkdir -p "$(dirname "$ARCHIVE_FILE")"
+rm -f "$ARCHIVE_FILE"
+tar -C "$OUTPUT_DIR" -czf "$ARCHIVE_FILE" .
+
+echo "SDK directory: $OUTPUT_DIR"
+echo "SDK archive: $ARCHIVE_FILE"
+echo "SDK version: $SDK_VERSION"