src/core/identserver.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005-2019 by the Quassel Project                        *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
  19  ***************************************************************************/
  20
  21 #pragma once
  22
  23 #include <list>
  24
  25 #include <QHash>
  26 #include <QObject>
  27 #include <QPointer>
  28 #include <QString>
  29 #include <QTcpServer>
  30 #include <QTcpSocket>
  31
  32 #include "coreidentity.h"
  33
  34 struct Request
  35 {
  36     QPointer<QTcpSocket> socket;
  37     uint16_t localPort;
  38     QString query;
  39     qint64 transactionId;
  40     qint64 requestId;
  41
  42     friend bool operator==(const Request& a, const Request& b);
  43
  44     void respondSuccess(const QString& user);
  45     void respondError(const QString& error);
  46 };
  47
  48 class IdentServer : public QObject
  49 {
  50     Q_OBJECT
  51
  52 public:
  53     IdentServer(QObject* parent = nullptr);
  54
  55     bool startListening();
  56     void stopListening(const QString& msg);
  57     qint64 addWaitingSocket();
  58
  59 public slots:
  60     void addSocket(const CoreIdentity* identity,
  61                    const QHostAddress& localAddress,
  62                    quint16 localPort,
  63                    const QHostAddress& peerAddress,
  64                    quint16 peerPort,
  65                    qint64 socketId);
  66     void removeSocket(const CoreIdentity* identity,
  67                       const QHostAddress& localAddress,
  68                       quint16 localPort,
  69                       const QHostAddress& peerAddress,
  70                       quint16 peerPort,
  71                       qint64 socketId);
  72
  73 private slots:
  74     void incomingConnection();
  75     void respond();
  76
  77 private:
  78     bool responseAvailable(Request request) const;
  79
  80     qint64 lowestSocketId() const;
  81
  82     void processWaiting(qint64 socketId);
  83
  84     void removeWaitingSocket(qint64 socketId);
  85
  86     QTcpServer _server, _v6server;
  87
  88     QHash<uint16_t, QString> _connections;
  89     std::list<Request> _requestQueue;
  90     std::list<qint64> _waiting;
  91     qint64 _socketId{0};
  92     qint64 _requestId{0};
  93 };