TlsLegacySocketContext.h

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/*
 * SNode.C - A Slim Toolkit for Network Communication
 * Copyright (C) Volker Christian <me@vchrist.at>
 *               2020, 2021, 2022, 2023, 2024, 2025, 2026
 */
 
#ifndef APPS_TLSLEGACY_TLSLEGACYSOCKETCONTEXT_H
#define APPS_TLSLEGACY_TLSLEGACYSOCKETCONTEXT_H
 
#include "core/socket/stream/SocketContext.h"
#include "core/socket/stream/SocketContextFactory.h"
#include "core/timer/Timer.h"
 
namespace core::socket::stream {
    class SocketConnection;
}
 
#include <cstddef>
#include <string>
 
namespace apps::tlslegacy {
 
    class TlsLegacySocketContext : public core::socket::stream::SocketContext {
    public:
        enum class Role { SERVER, CLIENT };
 
        explicit TlsLegacySocketContext(core::socket::stream::SocketConnection* socketConnection, Role role);
 
    private:
        void onConnected() override;
        void onDisconnected() override;
        bool onSignal(int signum) override;
        std::size_t onReceivedFromPeer() override;
 
        void onClientLine(const std::string& line);
        void onServerLine(const std::string& line);
        void startLegacyRetryTimer(const std::string& payload);
 
        Role role;
        std::string inboundBuffer;
 
        bool tlsReplySeen = false;
        bool legacyReplySeen = false;
        bool legacyPayloadSeen = false;
 
        core::timer::Timer legacyRetryTimer;
    };
 
    class TlsLegacyServerSocketContextFactory : public core::socket::stream::SocketContextFactory {
    private:
        core::socket::stream::SocketContext* create(core::socket::stream::SocketConnection* socketConnection) override;
    };
 
    class TlsLegacyClientSocketContextFactory : public core::socket::stream::SocketContextFactory {
    private:
        core::socket::stream::SocketContext* create(core::socket::stream::SocketConnection* socketConnection) override;
    };
 
} // namespace apps::tlslegacy
 
#endif