author | Grigory Ustinov <grenka@altlinux.org> |
Thu, 26 Sep 2019 19:03:14 +0300 | |
changeset 15428 | e0f148794328 |
parent 15083 | fb7a9b0119d3 |
permissions | -rw-r--r-- |
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#include "net_session.h" |
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#include <QUuid> |
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#include "players_model.h" |
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#include "rooms_model.h" |
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NetSession::NetSession(QObject *parent) |
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: QObject(parent), |
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m_playersModel(new PlayersListModel()), |
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m_roomsModel(new RoomsListModel()), |
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m_sessionState(NotConnected) {} |
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NetSession::~NetSession() { close(); } |
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QUrl NetSession::url() const { return m_url; } |
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QAbstractSocket::SocketState NetSession::state() const { |
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if (m_socket) |
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return m_socket->state(); |
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else |
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return QAbstractSocket::UnconnectedState; |
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} |
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void NetSession::open() { |
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m_socket.reset(new QTcpSocket()); |
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connect(m_socket.data(), &QAbstractSocket::stateChanged, this, |
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&NetSession::stateChanged); |
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connect(m_socket.data(), &QTcpSocket::readyRead, this, |
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&NetSession::onReadyRead); |
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m_socket->connectToHost(m_url.host(), |
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static_cast<quint16>(m_url.port(46631))); |
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} |
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QString NetSession::nickname() const { return m_nickname; } |
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NetSession::SessionState NetSession::sessionState() const { |
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return m_sessionState; |
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} |
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QString NetSession::room() const { return m_room; } |
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QString NetSession::passwordHash() const { return m_passwordHash; } |
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void NetSession::setUrl(const QUrl &url) { |
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if (m_url == url) return; |
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m_url = url; |
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emit urlChanged(m_url); |
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} |
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void NetSession::setNickname(const QString &nickname) { |
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if (m_nickname == nickname) return; |
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m_nickname = nickname; |
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emit nicknameChanged(m_nickname); |
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} |
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void NetSession::setPasswordHash(const QString &passwordHash) { |
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if (m_passwordHash == passwordHash) return; |
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m_passwordHash = passwordHash; |
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emit passwordHashChanged(m_passwordHash); |
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if (m_sessionState == Authentication) sendPassword(); |
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} |
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void NetSession::setRoom(const QString &room) { |
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if (m_room == room) return; |
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m_room = room; |
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emit roomChanged(m_room); |
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} |
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void NetSession::close() { |
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if (!m_socket.isNull()) { |
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m_socket->disconnectFromHost(); |
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m_socket.clear(); |
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setSessionState(NotConnected); |
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setRoom({}); |
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} |
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} |
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void NetSession::onReadyRead() { |
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while (m_socket->canReadLine()) { |
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auto line = QString::fromUtf8(m_socket->readLine().simplified()); |
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if (line.isEmpty()) { |
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parseNetMessage(m_buffer); |
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m_buffer.clear(); |
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} else { |
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m_buffer.append(line); |
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} |
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} |
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} |
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void NetSession::parseNetMessage(const QStringList &message) { |
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if (message.isEmpty()) { |
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qWarning() << "Empty net message received"; |
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return; |
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} |
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qDebug() << "[SERVER]" << message; |
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using Handler = std::function<void(NetSession *, const QStringList &)>; |
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static QMap<QString, Handler> commandsMap{ |
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{"ADD_TEAM", &NetSession::handleAddTeam}, |
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{"ASKPASSWORD", &NetSession::handleAskPassword}, |
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{"BANLIST", &NetSession::handleBanList}, |
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{"BYE", &NetSession::handleBye}, |
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{"CFG", &NetSession::handleCfg}, |
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{"CHAT", &NetSession::handleChat}, |
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{"CLIENT_FLAGS", &NetSession::handleClientFlags}, |
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{"CONNECTED", &NetSession::handleConnected}, |
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{"EM", &NetSession::handleEm}, |
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{"ERROR", &NetSession::handleError}, |
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{"HH_NUM", &NetSession::handleHhNum}, |
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{"INFO", &NetSession::handleInfo}, |
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{"JOINED", &NetSession::handleJoined}, |
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{"JOINING", &NetSession::handleJoining}, |
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{"KICKED", &NetSession::handleKicked}, |
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{"LEFT", &NetSession::handleLeft}, |
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{"LOBBY:JOINED", &NetSession::handleLobbyJoined}, |
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{"LOBBY:LEFT", &NetSession::handleLobbyLeft}, |
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{"NICK", &NetSession::handleNick}, |
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{"NOTICE", &NetSession::handleNotice}, |
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{"PING", &NetSession::handlePing}, |
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{"PONG", &NetSession::handlePong}, |
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{"PROTO", &NetSession::handleProto}, |
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{"REDIRECT", &NetSession::handleRedirect}, |
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{"REMOVE_TEAM", &NetSession::handleRemoveTeam}, |
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{"REPLAY_START", &NetSession::handleReplayStart}, |
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{"ROOMABANDONED", &NetSession::handleRoomAbandoned}, |
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{"ROOM", &NetSession::handleRoom}, |
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{"ROOMS", &NetSession::handleRooms}, |
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{"ROUND_FINISHED", &NetSession::handleRoundFinished}, |
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{"RUN_GAME", &NetSession::handleRunGame}, |
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{"SERVER_AUTH", &NetSession::handleServerAuth}, |
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{"SERVER_MESSAGE", &NetSession::handleServerMessage}, |
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{"SERVER_VARS", &NetSession::handleServerVars}, |
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{"TEAM_ACCEPTED", &NetSession::handleTeamAccepted}, |
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{"TEAM_COLOR", &NetSession::handleTeamColor}, |
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{"WARNING", &NetSession::handleWarning}, |
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}; |
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auto handler = |
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commandsMap.value(message[0], &NetSession::handleUnknownCommand); |
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handler(this, message.mid(1)); |
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} |
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void NetSession::handleConnected(const QStringList ¶meters) { |
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if (parameters.length() < 2 || parameters[1].toInt() < cMinServerVersion) { |
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send("QUIT", "Server too old"); |
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emit error(tr("Server too old")); |
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close(); |
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} else { |
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setSessionState(Login); |
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send("NICK", m_nickname); |
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send("PROTO", QString::number(cProtocolVersion)); |
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} |
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} |
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void NetSession::handlePing(const QStringList ¶meters) { |
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send("PONG", parameters); |
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} |
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void NetSession::handleBye(const QStringList ¶meters) { close(); } |
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void NetSession::handleUnknownCommand(const QStringList ¶meters) { |
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Q_UNUSED(parameters); |
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qWarning() << "Command is not recognized"; |
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} |
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void NetSession::handleAddTeam(const QStringList ¶meters) {} |
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void NetSession::handleAskPassword(const QStringList ¶meters) { |
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if (parameters.length() != 1 || parameters[0].length() < 16) { |
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qWarning("Bad ASKPASSWORD message"); |
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return; |
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} |
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setSessionState(Authentication); |
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m_serverSalt = parameters[0]; |
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m_clientSalt = QUuid::createUuid().toString(); |
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if (m_passwordHash.isEmpty()) { |
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emit passwordAsked(); |
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} else { |
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sendPassword(); |
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} |
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} |
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void NetSession::handleBanList(const QStringList ¶meters) {} |
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void NetSession::handleCfg(const QStringList ¶meters) {} |
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void NetSession::handleChat(const QStringList ¶meters) {} |
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void NetSession::handleClientFlags(const QStringList ¶meters) {} |
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void NetSession::handleEm(const QStringList ¶meters) {} |
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void NetSession::handleError(const QStringList ¶meters) {} |
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void NetSession::handleHhNum(const QStringList ¶meters) {} |
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void NetSession::handleInfo(const QStringList ¶meters) {} |
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void NetSession::handleJoined(const QStringList ¶meters) {} |
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void NetSession::handleJoining(const QStringList ¶meters) {} |
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void NetSession::handleKicked(const QStringList ¶meters) {} |
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void NetSession::handleLeft(const QStringList ¶meters) {} |
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void NetSession::handleLobbyJoined(const QStringList ¶meters) { |
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for (auto player : parameters) { |
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if (player == m_nickname) { |
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// check if server is authenticated or no authentication was performed at |
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// all |
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if (!m_serverAuthHash.isEmpty()) { |
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emit error(tr("Server authentication error")); |
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close(); |
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} |
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setSessionState(Lobby); |
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} |
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m_playersModel->addPlayer(player, false); |
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} |
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} |
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void NetSession::handleLobbyLeft(const QStringList ¶meters) { |
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if (parameters.length() == 1) { |
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m_playersModel->removePlayer(parameters[0]); |
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} else if (parameters.length() == 2) { |
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m_playersModel->removePlayer(parameters[0], parameters[1]); |
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} else { |
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qWarning("Malformed LOBBY:LEFT message"); |
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} |
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} |
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void NetSession::handleNick(const QStringList ¶meters) { |
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if (parameters.length()) setNickname(parameters[0]); |
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} |
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void NetSession::handleNotice(const QStringList ¶meters) {} |
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void NetSession::handlePong(const QStringList ¶meters) { |
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Q_UNUSED(parameters) |
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} |
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void NetSession::handleProto(const QStringList ¶meters) {} |
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void NetSession::handleRedirect(const QStringList ¶meters) {} |
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void NetSession::handleRemoveTeam(const QStringList ¶meters) {} |
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void NetSession::handleReplayStart(const QStringList ¶meters) {} |
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void NetSession::handleRoomAbandoned(const QStringList ¶meters) {} |
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void NetSession::handleRoom(const QStringList ¶meters) { |
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if (parameters.size() == 10 && parameters[0] == "ADD") { |
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m_roomsModel->addRoom(parameters.mid(1)); |
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} else if (parameters.length() == 11 && parameters[0] == "UPD") { |
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m_roomsModel->updateRoom(parameters[1], parameters.mid(2)); |
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// keep track of room name so correct name is displayed |
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if (m_room == parameters[1]) { |
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setRoom(parameters[2]); |
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} |
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} else if (parameters.size() == 2 && parameters[0] == "DEL") { |
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m_roomsModel->removeRoom(parameters[1]); |
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} |
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} |
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void NetSession::handleRooms(const QStringList ¶meters) { |
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if (parameters.size() % 9) { |
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qWarning("Net: Malformed ROOMS message"); |
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return; |
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} |
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m_roomsModel->setRoomsList(parameters); |
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} |
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void NetSession::handleRoundFinished(const QStringList ¶meters) {} |
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void NetSession::handleRunGame(const QStringList ¶meters) {} |
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void NetSession::handleServerAuth(const QStringList ¶meters) {} |
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void NetSession::handleServerMessage(const QStringList ¶meters) {} |
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void NetSession::handleServerVars(const QStringList ¶meters) {} |
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void NetSession::handleTeamAccepted(const QStringList ¶meters) {} |
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void NetSession::handleTeamColor(const QStringList ¶meters) {} |
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void NetSession::handleWarning(const QStringList ¶meters) {} |
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void NetSession::send(const QString &message) { send(QStringList(message)); } |
313 |
||
314 |
void NetSession::send(const QString &message, const QString ¶m) { |
|
315 |
send(QStringList{message, param}); |
|
316 |
} |
|
317 |
||
318 |
void NetSession::send(const QString &message, const QStringList ¶meters) { |
|
319 |
send(QStringList(message) + parameters); |
|
320 |
} |
|
321 |
||
322 |
void NetSession::send(const QStringList &message) { |
|
323 |
Q_ASSERT(!m_socket.isNull()); |
|
324 |
||
325 |
qDebug() << "[CLIENT]" << message; |
|
326 |
||
327 |
m_socket->write(message.join('\n').toUtf8() + "\n\n"); |
|
328 |
} |
|
329 |
||
15083 | 330 |
void NetSession::sendPassword() { |
331 |
/* When we got password hash, and server asked us for a password, perform |
|
332 |
* mutual authentication: at this point we have salt chosen by server. Client |
|
333 |
* sends client salt and hash of secret (password hash) salted with client |
|
334 |
* salt, server salt, and static salt (predefined string + protocol number). |
|
335 |
* Server should respond with hash of the same set in different order. |
|
336 |
*/ |
|
337 |
||
338 |
if (m_passwordHash.isEmpty() || m_serverSalt.isEmpty()) return; |
|
339 |
||
340 |
QString hash = |
|
341 |
QCryptographicHash::hash(m_clientSalt.toLatin1() |
|
342 |
.append(m_serverSalt.toLatin1()) |
|
343 |
.append(m_passwordHash) |
|
344 |
.append(QByteArray::number(cProtocolVersion)) |
|
345 |
.append("!hedgewars"), |
|
346 |
QCryptographicHash::Sha1) |
|
347 |
.toHex(); |
|
348 |
||
349 |
m_serverHash = |
|
350 |
QCryptographicHash::hash(m_serverSalt.toLatin1() |
|
351 |
.append(m_clientSalt.toLatin1()) |
|
352 |
.append(m_passwordHash) |
|
353 |
.append(QByteArray::number(cProtocolVersion)) |
|
354 |
.append("!hedgewars"), |
|
355 |
QCryptographicHash::Sha1) |
|
356 |
.toHex(); |
|
357 |
||
358 |
send("PASSWORD", QStringList{hash, m_clientSalt}); |
|
359 |
} |
|
360 |
||
14920 | 361 |
void NetSession::setSessionState(NetSession::SessionState sessionState) { |
362 |
if (m_sessionState == sessionState) return; |
|
363 |
||
364 |
m_sessionState = sessionState; |
|
365 |
||
366 |
emit sessionStateChanged(sessionState); |
|
367 |
} |