identd: Rework lowestSocketId handling
[quassel.git] / src / core / identserver.h
1 /***************************************************************************
2  *   Copyright (C) 2005-2018 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 <QTcpServer>
24 #include <QTcpSocket>
25
26 #include "coreidentity.h"
27
28 struct Request {
29     QTcpSocket *socket;
30     uint16_t localPort;
31     QString query;
32     qint64 transactionId;
33     qint64 requestId;
34
35     friend bool operator==(const Request &a, const Request &b);
36 };
37
38 class IdentServer : public QObject {
39 Q_OBJECT
40 public:
41     IdentServer(bool strict, QObject *parent);
42     ~IdentServer() override;
43
44     bool startListening();
45     void stopListening(const QString &msg);
46     qint64 addWaitingSocket();
47 public slots:
48     bool addSocket(const CoreIdentity *identity, const QHostAddress &localAddress, quint16 localPort, const QHostAddress &peerAddress, quint16 peerPort, qint64 socketId);
49     bool removeSocket(const CoreIdentity *identity, const QHostAddress &localAddress, quint16 localPort, const QHostAddress &peerAddress, quint16 peerPort, qint64 socketId);
50
51 private slots:
52     void incomingConnection();
53     void respond();
54
55 private:
56     bool responseAvailable(Request request);
57     void responseUnavailable(Request request);
58
59     QString sysIdentForIdentity(const CoreIdentity *identity) const;
60
61     qint64 lowestSocketId();
62
63     void processWaiting(qint64 socketId);
64
65     void removeWaitingSocket(qint64 socketId);
66
67     QTcpServer _server, _v6server;
68
69     bool _strict;
70
71     QHash<uint16_t, QString> _connections;
72     std::list<Request> _requestQueue;
73     std::list<qint64> _waiting;
74     qint64 _socketId;
75     qint64 _requestId;
76 };