Move network related code to core/net.

src/core/core.pri

@@ -10,8 +10,6 @@ HEADERS += \
     $$PWD/filesystemwatcher.h \
     $$PWD/scannedfoldersmodel.h \
     $$PWD/qinisettings.h \
-    $$PWD/smtp.h \
-    $$PWD/dnsupdater.h \
     $$PWD/logger.h \
     $$PWD/preferences.h \
     $$PWD/qtracker.h \
@@ -21,7 +19,10 @@ HEADERS += \
     $$PWD/http/responsegenerator.h \
     $$PWD/http/server.h \
     $$PWD/http/types.h \
-    $$PWD/http/responsebuilder.h
+    $$PWD/http/responsebuilder.h \
+    $$PWD/net/dnsupdater.h \
+    $$PWD/net/reverseresolution.h \
+    $$PWD/net/smtp.h
 
 SOURCES += \
     $$PWD/downloadthread.cpp \
@@ -29,8 +30,6 @@ SOURCES += \
     $$PWD/torrentpersistentdata.cpp \
     $$PWD/misc.cpp \
     $$PWD/fs_utils.cpp \
-    $$PWD/smtp.cpp \
-    $$PWD/dnsupdater.cpp \
     $$PWD/logger.cpp \
     $$PWD/preferences.cpp \
     $$PWD/qtracker.cpp \
@@ -38,4 +37,7 @@ SOURCES += \
     $$PWD/http/requestparser.cpp \
     $$PWD/http/responsegenerator.cpp \
     $$PWD/http/server.cpp \
-    $$PWD/http/responsebuilder.cpp
+    $$PWD/http/responsebuilder.cpp \
+    $$PWD/net/dnsupdater.cpp \
+    $$PWD/net/reverseresolution.cpp \
+    $$PWD/net/smtp.cpp

src/core/net/dnsupdater.cpp

@@ -38,6 +38,8 @@
 #include "dnsupdater.h"
 #include "logger.h"
 
+using namespace Net;
+
 DNSUpdater::DNSUpdater(QObject *parent) :
   QObject(parent), m_state(OK), m_service(DNS::NONE)
 {

src/core/net/dnsupdater.h

@@ -38,6 +38,9 @@
 #include <QTimer>
 #include "preferences.h"
 
+namespace Net
+{
+
 /*!
  * Based on http://www.dyndns.com/developers/specs/
  */
@@ -78,4 +81,6 @@ private:
   enum State { OK, INVALID_CREDS, FATAL };
 };
 
+}
+
 #endif // DNSUPDATER_H

src/core/net/reverseresolution.cpp

@@ -0,0 +1,94 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2006  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
+ */
+
+#include <QDebug>
+#include <QHostInfo>
+#include <QString>
+
+#include <boost/version.hpp>
+#if BOOST_VERSION < 103500
+#include <libtorrent/asio/ip/tcp.hpp>
+#else
+#include <boost/asio/ip/tcp.hpp>
+#endif
+
+#include "reverseresolution.h"
+
+const int CACHE_SIZE = 500;
+
+using namespace Net;
+
+static inline bool isUsefulHostName(const QString &hostname, const QString &ip)
+{
+    return (!hostname.isEmpty() && hostname != ip);
+}
+
+ReverseResolution::ReverseResolution(QObject *parent)
+    : QObject(parent)
+{
+    m_cache.setMaxCost(CACHE_SIZE);
+}
+
+ReverseResolution::~ReverseResolution()
+{
+    qDebug("Deleting host name resolver...");
+}
+
+void ReverseResolution::resolve(const QString &ip)
+{
+    if (m_cache.contains(ip)) {
+        const QString &hostname = *m_cache.object(ip);
+        qDebug() << "Resolved host name using cache: " << ip << " -> " << hostname;
+        if (isUsefulHostName(hostname, ip))
+            emit ipResolved(ip, hostname);
+    }
+    else {
+        // Actually resolve the ip
+        m_lookups.insert(QHostInfo::lookupHost(ip, this, SLOT(hostResolved(QHostInfo))), ip);
+    }
+}
+
+void ReverseResolution::hostResolved(const QHostInfo &host)
+{
+    const QString &ip = m_lookups.take(host.lookupId());
+    Q_ASSERT(!ip.isNull());
+
+    if (host.error() != QHostInfo::NoError) {
+        qDebug() << "DNS Reverse resolution error: " << host.errorString();
+        return;
+    }
+
+    const QString &hostname = host.hostName();
+
+    qDebug() << Q_FUNC_INFO << ip << QString("->") << hostname;
+    m_cache.insert(ip, new QString(hostname));
+    if (isUsefulHostName(hostname, ip))
+        emit ipResolved(ip, hostname);
+}

src/core/net/reverseresolution.h

@@ -0,0 +1,67 @@
+/*
+ * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2006  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 NET_REVERSERESOLUTION_H
+#define NET_REVERSERESOLUTION_H
+
+#include <QCache>
+#include <QObject>
+
+QT_BEGIN_NAMESPACE
+class QHostInfo;
+class QString;
+QT_END_NAMESPACE
+
+namespace Net
+{
+    class ReverseResolution : public QObject
+    {
+        Q_OBJECT
+        Q_DISABLE_COPY(ReverseResolution)
+
+    public:
+        explicit ReverseResolution(QObject *parent = 0);
+        ~ReverseResolution();
+
+        void resolve(const QString &ip);
+
+    signals:
+        void ipResolved(const QString &ip, const QString &hostname);
+
+    private slots:
+        void hostResolved(const QHostInfo &host);
+
+    private:
+        QHash<int /* LookupID */, QString /* IP */> m_lookups;
+        QCache<QString /* IP */, QString /* HostName */> m_cache;
+    };
+}
+
+#endif // NET_REVERSERESOLUTION_H

src/core/net/smtp.cpp

@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -89,6 +89,8 @@ QByteArray determineFQDN()
 }
 } // namespace
 
+using namespace Net;
+
 Smtp::Smtp(QObject *parent): QObject(parent),
   state(Init), use_ssl(false) {
 #ifndef QT_NO_OPENSSL

src/core/net/smtp.h

@@ -1,5 +1,5 @@
 /*
- * Bittorrent Client using Qt4 and libtorrent.
+ * Bittorrent Client using Qt and libtorrent.
  * Copyright (C) 2011  Christophe Dumez
  *
  * This program is free software; you can redistribute it and/or
@@ -50,6 +50,9 @@ class QTcpSocket;
 class QTextCodec;
 QT_END_NAMESPACE
 
+namespace Net
+{
+
 class Smtp : public QObject {
   Q_OBJECT
 
@@ -96,4 +99,7 @@ private:
   QString username;
   QString password;
 };
+
+}
+
 #endif

src/core/qtlibtorrent/qbtsession.cpp

@@ -38,7 +38,7 @@
 #include <QProcess>
 #include <QCoreApplication>
 
-#include "smtp.h"
+#include "core/net/smtp.h"
 #include "filesystemwatcher.h"
 #include "torrentspeedmonitor.h"
 #include "torrentstatistics.h"
@@ -2046,7 +2046,7 @@ void QBtSession::sendNotificationEmail(const QTorrentHandle &h) {
     content += tr("The torrent was downloaded in %1.", "The torrent was downloaded in 1 hour and 20 seconds").arg(misc::userFriendlyDuration(status.active_time)) + "\n\n\n";
     content += tr("Thank you for using qBittorrent.") + "\n";
     // Send the notification email
-    Smtp *sender = new Smtp(this);
+    Net::Smtp *sender = new Net::Smtp(this);
     sender->sendMail("notification@qbittorrent.org", Preferences::instance()->getMailNotificationEmail(), tr("[qBittorrent] %1 has finished downloading").arg(h.name()), content);
 }