mirror of
https://gitea.wildfiregames.com/0ad/0ad
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143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/* Copyright (C) 2026 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef NET_SERVER_SESSION_H
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#define NET_SERVER_SESSION_H
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#include "network/FSM.h"
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#include "network/NetFileTransfer.h"
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#include "network/NetHost.h"
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#include "ps/CStr.h"
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#include <deque>
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#include <ngtcp2/ngtcp2.h>
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#include <ngtcp2/ngtcp2_crypto.h>
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#include <ngtcp2/ngtcp2_crypto_gnutls.h>
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#include <optional>
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#include <span>
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#include <sys/timerfd.h>
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#include <sys/epoll.h>
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#include <sys/socket.h>
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#include <sys/timerfd.h>
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#include "network/NetProtocol.h"
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#include "ps/CLogger.h"
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class CNetServerWorker;
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typedef struct _ENetPeer ENetPeer;
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class CNetServerSession;
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class Connection
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{
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public:
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Connection(CNetServerSession& session, const ngtcp2_settings& settings,
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gnutls_certificate_credentials_t credentials, const ngtcp2_pkt_hd& header,
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const ngtcp2_cid& scid, const ngtcp2_path& path);
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void OpenStream();
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Stream& GetStream();
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void Read(const ngtcp2_addr remote, const std::span<std::uint8_t> data);
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void Write(const int socketFd);
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std::unique_ptr<gnutls_session_int, SessionDeleter> m_TlsSession;
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std::unique_ptr<ngtcp2_conn, ConnectionDeleter> m_QuicConnection;
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int m_TimerFd{-1};
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public:
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ngtcp2_sockaddr_union m_LocalAddress;
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ngtcp2_socklen m_LocalAddressLength;
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ngtcp2_sockaddr_union m_RemoteAddress;
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ngtcp2_socklen m_RemoteAddressLength;
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std::optional<Stream> m_Stream;
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ngtcp2_crypto_conn_ref m_ConnRef;
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};
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/**
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* The server's end of a network session.
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* Represents an abstraction of the state of the client, storing all the per-client data
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* needed by the server.
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*
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* Thread-safety:
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* - This is constructed and used by CNetServerWorker in the network server thread.
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*/
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class CNetServerSession : public CFsm<CNetServerSession, CNetMessage*>
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{
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NONCOPYABLE(CNetServerSession);
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public:
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CNetServerSession(CNetServerWorker& server, const int socketFd, const ngtcp2_settings& settings,
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gnutls_certificate_credentials_t credentials, const ngtcp2_pkt_hd& header,
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const ngtcp2_cid& newScid, const ngtcp2_path& path);
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CNetServerWorker& GetServer() { return m_Server; }
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const CStr& GetGUID() const { return m_GUID; }
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void SetGUID(const CStr& guid) { m_GUID = guid; }
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const CStrW& GetUserName() const { return m_UserName; }
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void SetUserName(const CStrW& name) { m_UserName = name; }
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u32 GetHostID() const { return m_HostID; }
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void SetHostID(u32 id) { m_HostID = id; }
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u32 GetIPAddress() const;
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/**
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* Number of milliseconds since the latest packet of that client was received.
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*/
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u32 GetLastReceivedTime() const;
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/**
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* Average round trip time to the client.
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*/
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u32 GetMeanRTT() const;
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/**
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* Sends a disconnection notification to the client,
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* and sends a NMT_CONNECTION_LOST message to the session FSM.
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* The server will receive a disconnection notification after a while.
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* The server will not receive any further messages sent via this session.
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*/
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void Disconnect(NetDisconnectReason reason);
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/**
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* Send a message to the client.
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*/
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bool SendMessage(const CNetMessage* message);
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CNetFileTransferer& GetFileTransferer() { return m_FileTransferer; }
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private:
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CNetServerWorker& m_Server;
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public:
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Connection m_Connection;
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private:
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CNetFileTransferer m_FileTransferer;
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ENetPeer* m_Peer;
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CStr m_GUID;
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CStrW m_UserName;
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u32 m_HostID{0};
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CStr m_Password;
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int m_SocketFd;
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};
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#endif // NET_SERVER_SESSION_H
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