path: root/test/test_p2p_tls.cpp

/**
 * Copyright (c) 2019 Ava Labs, Inc.
 *
 * Author: Ted Yin <tederminant@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <cstdio>
#include <cstdint>
#include <string>
#include <functional>
#include <unordered_map>
#include <unordered_set>
#include <unistd.h>
#include <signal.h>

#include "salticidae/msg.h"
#include "salticidae/event.h"
#include "salticidae/network.h"
#include "salticidae/stream.h"

using salticidae::NetAddr;
using salticidae::DataStream;
using salticidae::htole;
using salticidae::letoh;
using salticidae::EventContext;
using salticidae::ThreadCall;
using salticidae::PKey;
using std::placeholders::_1;
using std::placeholders::_2;

using PeerNetwork = salticidae::PeerNetwork<uint8_t>;

struct MsgText {
    static const uint8_t opcode = 0x0;
    DataStream serialized;
    uint64_t id;
    std::string text;

    MsgText(uint64_t id, const std::string &text) {
        serialized << salticidae::htole(id) << salticidae::htole((uint32_t)text.length()) << text;
    }

    MsgText(DataStream &&s) {
        uint32_t len;
        s >> id;
        id = salticidae::letoh(id);
        s >> len;
        len = salticidae::letoh(len);
        text = std::string((const char *)s.get_data_inplace(len), len);
    }
};

const uint8_t MsgText::opcode;

void masksigs() {
	sigset_t mask;
	sigemptyset(&mask);
    sigfillset(&mask);
    pthread_sigmask(SIG_BLOCK, &mask, NULL);
}

std::unordered_set<uint256_t> valid_certs;

struct Net {
    uint64_t id;
    EventContext ec;
    ThreadCall tc;
    std::thread th;
    PeerNetwork *net;
    const std::string listen_addr;
    uint256_t cert;

    Net(uint64_t id, uint16_t port): id(id), tc(ec), listen_addr("127.0.0.1:"+ std::to_string(port)) {
        auto tls_key = new PKey(PKey::create_privkey_rsa(2048));
        auto tls_cert = new salticidae::X509(salticidae::X509::create_self_signed_from_pubkey(*tls_key));
        tls_key->save_privkey_to_file(std::to_string(port) + "_pkey.pem");
        tls_cert->save_to_file(std::to_string(port) + ".pem");
        cert = salticidae::get_hash(tls_cert->get_der());
        valid_certs.insert(cert);
        net = new PeerNetwork(ec, PeerNetwork::Config(salticidae::ConnPool::Config()
                    .enable_tls(true)
                    .tls_key(tls_key)
                    .tls_cert(tls_cert)
                ).conn_timeout(5)
                .ping_period(2)
                .id_mode(PeerNetwork::IdentityMode::ADDR_BASED));
        net->reg_handler([this](const MsgText &msg, const PeerNetwork::conn_t &) {
            fprintf(stdout, "net %lu: peer %lu says %s\n", this->id, msg.id, msg.text.c_str());
        });
        net->reg_conn_handler([this](const salticidae::ConnPool::conn_t &conn, bool connected) {
            if (connected)
            {
                auto cert_hash = salticidae::get_hash(conn->get_peer_cert()->get_der());
                return valid_certs.count(cert_hash) > 0;
            }
            return true;
        });
        net->reg_error_handler([this](const std::exception_ptr _err, bool fatal, int32_t async_id) {
            try {
                std::rethrow_exception(_err);
            } catch (const std::exception &err) {
                fprintf(stdout, "net %lu: captured %s error during an async call %d: %s\n",
                        this->id, fatal ? "fatal" : "recoverable", async_id, err.what());
            }