fl::configuration get_freelan_configuration(const fscp::logger& logger, const service_configuration& configuration)
{
namespace po = boost::program_options;
po::options_description configuration_options("Configuration");
configuration_options.add(get_server_options());
configuration_options.add(get_client_options());
configuration_options.add(get_fscp_options());
configuration_options.add(get_security_options());
configuration_options.add(get_tap_adapter_options());
configuration_options.add(get_switch_options());
configuration_options.add(get_router_options());
fl::configuration fl_configuration;
po::variables_map vm;
const fs::path configuration_file = configuration.configuration_file;
const fs::path root_directory = configuration_file.parent_path();
fs::basic_ifstream<char> ifs(configuration_file);
if (!ifs)
{
throw po::reading_file(configuration_file.string().c_str());
}
po::store(po::parse_config_file(ifs, configuration_options, true), vm);
make_paths_absolute(vm, root_directory);
po::notify(vm);
setup_configuration(logger, fl_configuration, vm);
return fl_configuration;
}
bool parse_options(fscp::logger& logger, int argc, char** argv, cli_configuration& configuration)
{
namespace po = boost::program_options;
po::options_description visible_options;
po::options_description all_options;
po::options_description generic_options("Generic options");
generic_options.add_options()
("help,h", "Produce help message.")
("version,v", "Get the program version.")
("debug,d", "Enables debug output.")
("threads,t", po::value<unsigned int>(&configuration.thread_count)->default_value(0), "The number of threads to use.")
("configuration_file,c", po::value<std::string>(), "The configuration file to use.")
;
visible_options.add(generic_options);
all_options.add(generic_options);
po::options_description configuration_options("Configuration");
configuration_options.add(get_server_options());
configuration_options.add(get_client_options());
configuration_options.add(get_fscp_options());
configuration_options.add(get_security_options());
configuration_options.add(get_tap_adapter_options());
configuration_options.add(get_switch_options());
configuration_options.add(get_router_options());
visible_options.add(configuration_options);
all_options.add(configuration_options);
#ifdef WINDOWS
po::options_description service_options("Service");
service_options.add_options()
("install", "Install the service.")
("uninstall", "Uninstall the service.")
("reinstall", "Reinstall the service.")
;
visible_options.add(service_options);
all_options.add(service_options);
#else
po::options_description daemon_options("Daemon");
daemon_options.add_options()
("foreground,f", "Do not run as a daemon.")
("pid_file,p", po::value<std::string>(), "A pid file to use.")
;
visible_options.add(daemon_options);
all_options.add(daemon_options);
po::options_description misc_options("Miscellaneous");
misc_options.add_options()
("nocolor", "Disable color output.")
;
visible_options.add(misc_options);
all_options.add(misc_options);
#endif
po::variables_map vm;
po::store(po::parse_command_line(argc, argv, all_options), vm);
make_paths_absolute(vm, fs::current_path());
if (vm.count("help"))
{
std::cout << visible_options << std::endl;
return false;
}
if (vm.count("version"))
{
std::cout << FREELAN_NAME << " " << FREELAN_VERSION_STRING << " " << FREELAN_DATE << std::endl;
return false;
}
#ifdef WINDOWS
if (vm.count("install"))
{
if (vm.count("uninstall"))
{
throw std::runtime_error("Cannot specify both --install and --uninstall options. Use --reinstall instead.");
}
else
{
if (windows::install_service())
{
logger(fscp::log_level::important) << "Service installed.";
}
else
{
logger(fscp::log_level::error) << "The service was already installed.";
}
return false;
}
}
else if (vm.count("uninstall"))
{
if (windows::uninstall_service())
{
logger(fscp::log_level::important) << "Service uninstalled.";
}
else
{
logger(fscp::log_level::error) << "The service has already been deleted.";
}
return false;
}
else if (vm.count("reinstall"))
{
if (windows::uninstall_service())
{
logger(fscp::log_level::important) << "Service uninstalled.";
}
else
{
logger(fscp::log_level::error) << "The service has already been deleted.";
}
if (windows::install_service())
{
logger(fscp::log_level::important) << "Service installed.";
}
else
{
logger(fscp::log_level::error) << "The service was already installed.";
}
return false;
}
#else
configuration.foreground = (vm.count("foreground") > 0);
if (vm.count("nocolor") > 0)
{
// This is a global variable. Not really nice but does its job in this case.
DISABLE_COLOR = true;
}
if (vm.count("pid_file"))
{
configuration.pid_file = fs::absolute(vm["pid_file"].as<std::string>());
}
else
{
char* val = getenv("FREELAN_PID_FILE");
if (val)
{
configuration.pid_file = fs::absolute(std::string(val));
}
}
#endif
fs::path configuration_file;
if (vm.count("configuration_file"))
{
configuration_file = fs::absolute(vm["configuration_file"].as<std::string>());
}
else
{
#ifdef _MSC_VER
#ifdef UNICODE
std::wstring value(4096, L'\0');
const DWORD value_size = GetEnvironmentVariable(L"FREELAN_CONFIGURATION_FILE", &value[0], static_cast<DWORD>(value.size()));
#else
std::string value(4096, '\0');
const DWORD value_size = GetEnvironmentVariable("FREELAN_CONFIGURATION_FILE", &value[0], static_cast<DWORD>(value.size()));
#endif
if (value_size > 0)
{
value.resize(value_size);
configuration_file = fs::absolute(value);
}
#else
const char* val = getenv("FREELAN_CONFIGURATION_FILE");
if (val)
{
configuration_file = fs::absolute(std::string(val));
}
#endif
}
if (!configuration_file.empty())
{
logger(fscp::log_level::information) << "Reading configuration file at: " << configuration_file;
fs::basic_ifstream<char> ifs(configuration_file);
if (!ifs)
{
throw po::reading_file(configuration_file.string().c_str());
}
po::store(po::parse_config_file(ifs, configuration_options, true), vm);
}
else
{
bool configuration_read = false;
const std::vector<fs::path> configuration_files = get_configuration_files();
BOOST_FOREACH(const fs::path& conf, configuration_files)
{
fs::basic_ifstream<char> ifs(conf);
if (ifs)
{
logger(fscp::log_level::information) << "Reading configuration file at: " << conf << std::endl;
po::store(po::parse_config_file(ifs, configuration_options, true), vm);
configuration_file = fs::absolute(conf);
configuration_read = true;
break;
}
}
if (!configuration_read)
{
logger(fscp::log_level::warning) << "Warning ! No configuration file specified and none found in the environment.";
logger(fscp::log_level::warning) << "Looked up locations were:";
for (auto&& conf : configuration_files)
{
logger(fscp::log_level::warning) << "- " << conf;
}
}
}