src/base/net/dnsupdater.h

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2011  Christophe Dumez <chris@qbittorrent.org>
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License
   7  * as published by the Free Software Foundation; either version 2
   8  * of the License, or (at your option) any later version.
   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 Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  *
  19  * In addition, as a special exception, the copyright holders give permission to
  20  * link this program with the OpenSSL project's "OpenSSL" library (or with
  21  * modified versions of it that use the same license as the "OpenSSL" library),
  22  * and distribute the linked executables. You must obey the GNU General Public
  23  * License in all respects for all of the code used other than "OpenSSL".  If you
  24  * modify file(s), you may extend this exception to your version of the file(s),
  25  * but you are not obligated to do so. If you do not wish to do so, delete this
  26  * exception statement from your version.
  27  */
  28
  29 #pragma once
  30
  31 #include <QDateTime>
  32 #include <QHostAddress>
  33 #include <QObject>
  34 #include <QTimer>
  35
  36 #include "base/preferences.h"
  37
  38 namespace Net
  39 {
  40     struct DownloadResult;
  41
  42     // Based on http://www.dyndns.com/developers/specs/
  43     class DNSUpdater : public QObject
  44     {
  45         Q_OBJECT
  46         Q_DISABLE_COPY_MOVE(DNSUpdater)
  47
  48     public:
  49         explicit DNSUpdater(QObject *parent = nullptr);
  50         ~DNSUpdater();
  51
  52         static QUrl getRegistrationUrl(DNS::Service service);
  53
  54     public slots:
  55         void updateCredentials();
  56
  57     private slots:
  58         void checkPublicIP();
  59         void ipRequestFinished(const DownloadResult &result);
  60         void updateDNSService();
  61         void ipUpdateFinished(const DownloadResult &result);
  62
  63     private:
  64         enum State
  65         {
  66             OK,
  67             INVALID_CREDS,
  68             FATAL
  69         };
  70
  71         QString getUpdateUrl() const;
  72         void processIPUpdateReply(const QString &reply);
  73
  74         QHostAddress m_lastIP;
  75         QDateTime m_lastIPCheckTime;
  76         QTimer m_ipCheckTimer;
  77         int m_state;
  78         // Service creds
  79         DNS::Service m_service;
  80         QString m_domain;
  81         QString m_username;
  82         QString m_password;
  83     };
  84 }