Method main

programs/keeper/Keeper.cpp:314–525

}

int Keeper::main(const std::vector<std::string> & /*args*/)
{
    Poco::Logger * log = &logger();

    UseSSL use_ssl;

    MainThreadStatus::getInstance();

#if !defined(NDEBUG) || !defined(__OPTIMIZE__)
    LOG_WARNING(log, "Keeper was built in debug mode. It will work slowly.");
#endif

#if defined(SANITIZER)
    LOG_WARNING(log, "Keeper was built with sanitizer. It will work slowly.");
#endif

    auto shared_context = Context::createShared();
    global_context = Context::createGlobal(shared_context.get());

    global_context->makeGlobalContext();
    global_context->setApplicationType(Context::ApplicationType::KEEPER);

    if (!config().has("keeper_server"))
        throw Exception(ErrorCodes::NO_ELEMENTS_IN_CONFIG, "Keeper configuration (<keeper_server> section) not found in config");


    std::string path;

    if (config().has("keeper_server.storage_path"))
        path = config().getString("keeper_server.storage_path");
    else if (config().has("keeper_server.log_storage_path"))
        path = config().getString("keeper_server.log_storage_path");
    else if (config().has("keeper_server.snapshot_storage_path"))
        path = config().getString("keeper_server.snapshot_storage_path");
    else
        path = std::filesystem::path{KEEPER_DEFAULT_PATH};


    /// Check that the process user id matches the owner of the data.
    const auto effective_user_id = geteuid();
    struct stat statbuf;
    if (stat(path.c_str(), &statbuf) == 0 && effective_user_id != statbuf.st_uid)
    {
        const auto effective_user = getUserName(effective_user_id);
        const auto data_owner = getUserName(statbuf.st_uid);
        std::string message = "Effective user of the process (" + effective_user +
            ") does not match the owner of the data (" + data_owner + ").";
        if (effective_user_id == 0)
        {
            message += " Run under 'sudo -u " + data_owner + "'.";
            throw Exception(message, ErrorCodes::MISMATCHING_USERS_FOR_PROCESS_AND_DATA);
        }
        else
        {
            LOG_WARNING(log, message);
        }
    }