FEATURE: qBittorrent can update dynamic DNS services (DynDNS, no-ip)

src/dnsupdater.h

@@ -0,0 +1,81 @@
+/*
+ * Bittorrent Client using Qt4 and libtorrent.
+ * Copyright (C) 2011  Christophe Dumez
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * In addition, as a special exception, the copyright holders give permission to
+ * link this program with the OpenSSL project's "OpenSSL" library (or with
+ * modified versions of it that use the same license as the "OpenSSL" library),
+ * and distribute the linked executables. You must obey the GNU General Public
+ * License in all respects for all of the code used other than "OpenSSL".  If you
+ * modify file(s), you may extend this exception to your version of the file(s),
+ * but you are not obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * Contact : chris@qbittorrent.org
+ */
+
+#ifndef DNSUPDATER_H
+#define DNSUPDATER_H
+
+#include <QObject>
+#include <QHostAddress>
+#include <QNetworkReply>
+#include <QDateTime>
+#include <QTimer>
+#include "preferences.h"
+
+/*!
+ * Based on http://www.dyndns.com/developers/specs/
+ */
+class DNSUpdater : public QObject
+{
+  Q_OBJECT
+public:
+  explicit DNSUpdater(QObject *parent = 0);
+  ~DNSUpdater();
+  static QUrl getRegistrationUrl(int service);
+
+public slots:
+  void updateCredentials();
+
+private slots:
+  void checkPublicIP();
+  void ipRequestFinished(QNetworkReply* reply);
+  void updateDNSService();
+  void ipUpdateFinished(QNetworkReply* reply);
+
+private:
+  QUrl getUpdateUrl() const;
+  void processIPUpdateReply(const QString &reply);
+
+private:
+  QHostAddress m_lastIP;
+  QDateTime m_lastIPCheckTime;
+  QTimer m_ipCheckTimer;
+  int m_state;
+  // Service creds
+  DNS::Service m_service;
+  QString m_domain;
+  QString m_username;
+  QString m_password;
+
+private:
+  static const int IP_CHECK_INTERVAL_MS = 1800000; // 30 min
+  enum State { OK, INVALID_CREDS, FATAL };
+};
+
+#endif // DNSUPDATER_H