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#include <boost/beast/version.hpp>
// Support both boost in Debian unstable (BOOST_LATEST) and in stable (boost 1.67)
#if BOOST_VERSION >= 107100
#define BOOST_LATEST
#endif
#include <boost/beast/core.hpp>
#include <boost/beast/http.hpp>
#include <boost/beast/version.hpp>
#ifdef BOOST_LATEST
#include <boost/beast/ssl.hpp>
#else
#include <boost/asio/ip/tcp.hpp>
#include <boost/asio/ssl/stream.hpp>
#endif
#include <boost/asio/dispatch.hpp>
#include <boost/asio/signal_set.hpp>
#include <boost/asio/strand.hpp>
#include <boost/config.hpp>
#include <exception>
#include <functional>
#include <iostream>
#include <thread>
#include <vector>
#include "server.h"
#include "http.h"
#include "https.h"
#include "privileges.h"
#include "statistics.h"
namespace beast = boost::beast; // from <boost/beast.hpp>
namespace http = beast::http; // from <boost/beast/http.hpp>
namespace net = boost::asio; // from <boost/asio.hpp>
namespace ssl = boost::asio::ssl; // from <boost/asio/ssl.hpp>
using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp>
const std::string Server::VersionString{ "Reichwein.IT Webserver "s + std::string{VERSION} };
namespace {
const int32_t stats_timer_seconds { 24 * 60 * 60 }; // save stats once a day
} // anonymous namespace
Server::Server(Config& config, boost::asio::io_context& ioc, const Socket& socket, plugins_container_type& plugins, Statistics& statistics)
: m_config(config)
, m_ioc(ioc)
, m_socket(socket)
, m_plugins(plugins)
, m_statistics(statistics)
{
}
Server::~Server()
{
}
int run_server(Config& config, plugins_container_type& plugins)
{
Statistics stats;
auto const threads = std::max<int>(1, config.Threads());
boost::asio::io_context ioc{threads};
// for now, just terminate on SIGINT, SIGHUP and SIGTERM
boost::asio::signal_set signals(ioc, SIGINT, SIGTERM, SIGHUP);
signals.async_wait([&](const boost::system::error_code& error, int signal_number){
std::cout << "Terminating via signal " << signal_number << std::endl;
ioc.stop();
});
// Save stats once a day
boost::asio::steady_timer stats_save_timer(ioc, boost::asio::chrono::seconds(stats_timer_seconds));
std::function<void(const boost::system::error_code&)> stats_callback =
[&](const boost::system::error_code& error){
stats.save();
stats_save_timer.expires_at(stats_save_timer.expires_at() + boost::asio::chrono::seconds(stats_timer_seconds));
stats_save_timer.async_wait(stats_callback);
};
stats_save_timer.async_wait(stats_callback);
std::vector<std::shared_ptr<Server>> servers;
const auto& sockets {config.Sockets()};
for (const auto& socket: sockets) {
if (socket.protocol == SocketProtocol::HTTP) {
servers.push_back(std::make_shared<HTTP::Server>(config, ioc, socket, plugins, stats));
} else {
servers.push_back(std::make_shared<HTTPS::Server>(config, ioc, socket, plugins, stats));
}
servers.back()->start();
}
// set UID, GID
drop_privileges(config);
// Run the I/O service on the requested number of threads
std::vector<std::thread> v;
v.reserve(threads - 1);
for (auto i = threads - 1; i > 0; --i) {
v.emplace_back(
[&ioc]
{
ioc.run();
});
}
ioc.run();
for (auto& t: v) {
t.join();
}
return EXIT_SUCCESS;
}
Config& Server::GetConfig()
{
return m_config;
}
const Socket& Server::GetSocket()
{
return m_socket;
}
plugin_type Server::GetPlugin(const std::string& name)
{
try {
return m_plugins.at(name);
} catch (const std::out_of_range& ex) {
std::cout << "Out of range at Server::GetPlugin(): " << name << std::endl;
std::rethrow_exception(std::current_exception());
} catch (...) {
std::cout << "Unknown exception at Server::GetPlugin(): " << name << std::endl;
std::rethrow_exception(std::current_exception());
}
}
Statistics& Server::GetStatistics()
{
return m_statistics;
}
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