tls_echo_server_demo.cc

/*
 * This file is open source software, licensed to you under the terms
 * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership.  You may not use this file except in compliance with the License.
 *
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
/*
 * Copyright 2015 Cloudius Systems
 */
#include <cmath>
#include <seastar/core/reactor.hh>
#include <seastar/core/app-template.hh>
#include <seastar/core/sleep.hh>
#include <seastar/net/dns.hh>
#include "tls_echo_server.hh"

using namespace seastar;
namespace bpo = boost::program_options;


int main(int ac, char** av) {
    app_template app;
    app.add_options()
                    ("port", bpo::value<uint16_t>()->default_value(10000), "Server port")
                    ("address", bpo::value<std::string>()->default_value("127.0.0.1"), "Server address")
                    ("cert,c", bpo::value<std::string>()->required(), "Server certificate file")
                    ("key,k", bpo::value<std::string>()->required(), "Certificate key")
                    ("verbose,v", bpo::value<bool>()->default_value(false)->implicit_value(true), "Verbose")
                    ;
    return app.run_deprecated(ac, av, [&] {
        auto&& config = app.configuration();
        uint16_t port = config["port"].as<uint16_t>();
        auto crt = config["cert"].as<std::string>();
        auto key = config["key"].as<std::string>();
        auto addr = config["address"].as<std::string>();
        auto verbose = config["verbose"].as<bool>();

        std::cout << "Starting..." << std::endl;
        return net::dns::resolve_name(addr).then([=](net::inet_address a) {
            ipv4_addr ia(a, port);

            auto server = ::make_shared<seastar::sharded<echoserver>>();
            return server->start(verbose).then([=]() {
                return server->invoke_on_all(&echoserver::listen, socket_address(ia), sstring(crt), sstring(key), tls::client_auth::NONE);
            }).handle_exception([=](auto e) {
                std::cerr << "Error: " << e << std::endl;
                engine().exit(1);
            }).then([=] {
                std::cout << "TLS echo server running at " << addr << ":" << port << std::endl;
                engine().at_exit([server] {
                    return server->stop();
                });
            });
        });
    });
}