Add support for creating v2 torrents

src/base/bittorrent/torrentcreatorthread.cpp

@@ -55,6 +55,21 @@ namespace
     {
         return !Utils::Fs::fileName(QString::fromStdString(f)).startsWith('.');
     }
+
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    lt::create_flags_t toNativeTorrentFormatFlag(const BitTorrent::TorrentFormat torrentFormat)
+    {
+        switch (torrentFormat) {
+        case BitTorrent::TorrentFormat::V1:
+            return lt::create_torrent::v1_only;
+        case BitTorrent::TorrentFormat::Hybrid:
+            return {};
+        case BitTorrent::TorrentFormat::V2:
+            return lt::create_torrent::v2_only;
+        }
+        return {};
+    }
+#endif
 }
 
 using namespace BitTorrent;
@@ -131,8 +146,12 @@ void TorrentCreatorThread::run()
 
         if (isInterruptionRequested()) return;
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+        lt::create_torrent newTorrent {fs, m_params.pieceSize, toNativeTorrentFormatFlag(m_params.torrentFormat)};
+#else
         lt::create_torrent newTorrent(fs, m_params.pieceSize, m_params.paddedFileSizeLimit
             , (m_params.isAlignmentOptimized ? lt::create_torrent::optimize_alignment : lt::create_flags_t {}));
+#endif
 
         // Add url seeds
         for (QString seed : asConst(m_params.urlSeeds)) {
@@ -198,7 +217,11 @@ void TorrentCreatorThread::run()
     }
 }
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+int TorrentCreatorThread::calculateTotalPieces(const QString &inputPath, const int pieceSize, const TorrentFormat torrentFormat)
+#else
 int TorrentCreatorThread::calculateTotalPieces(const QString &inputPath, const int pieceSize, const bool isAlignmentOptimized, const int paddedFileSizeLimit)
+#endif
 {
     if (inputPath.isEmpty())
         return 0;
@@ -206,6 +229,10 @@ int TorrentCreatorThread::calculateTotalPieces(const QString &inputPath, const i
     lt::file_storage fs;
     lt::add_files(fs, Utils::Fs::toNativePath(inputPath).toStdString(), fileFilter);
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    return lt::create_torrent {fs, pieceSize, toNativeTorrentFormatFlag(torrentFormat)}.num_pieces();
+#else
     return lt::create_torrent(fs, pieceSize, paddedFileSizeLimit
         , (isAlignmentOptimized ? lt::create_torrent::optimize_alignment : lt::create_flags_t {})).num_pieces();
+#endif
 }

src/base/bittorrent/torrentcreatorthread.h

@@ -29,17 +29,32 @@
 #ifndef BITTORRENT_TORRENTCREATORTHREAD_H
 #define BITTORRENT_TORRENTCREATORTHREAD_H
 
+#include <libtorrent/version.hpp>
+
 #include <QStringList>
 #include <QThread>
 
 namespace BitTorrent
 {
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    enum class TorrentFormat
+    {
+        V1,
+        V2,
+        Hybrid
+    };
+#endif
+
     struct TorrentCreatorParams
     {
         bool isPrivate;
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+        TorrentFormat torrentFormat;
+#else
         bool isAlignmentOptimized;
-        int pieceSize;
         int paddedFileSizeLimit;
+#endif
+        int pieceSize;
         QString inputPath;
         QString savePath;
         QString comment;
@@ -58,8 +73,12 @@ namespace BitTorrent
 
         void create(const TorrentCreatorParams &params);
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+        static int calculateTotalPieces(const QString &inputPath, const int pieceSize, const TorrentFormat torrentFormat);
+#else
         static int calculateTotalPieces(const QString &inputPath
             , const int pieceSize, const bool isAlignmentOptimized, int paddedFileSizeLimit);
+#endif
 
     protected:
         void run() override;

src/gui/torrentcreatordialog.cpp

@@ -36,7 +36,6 @@
 #include <QUrl>
 
 #include "base/bittorrent/session.h"
-#include "base/bittorrent/torrentcreatorthread.h"
 #include "base/bittorrent/torrentinfo.h"
 #include "base/global.h"
 #include "base/utils/fs.h"
@@ -54,8 +53,12 @@ TorrentCreatorDialog::TorrentCreatorDialog(QWidget *parent, const QString &defau
     , m_storePrivateTorrent(SETTINGS_KEY("PrivateTorrent"))
     , m_storeStartSeeding(SETTINGS_KEY("StartSeeding"))
     , m_storeIgnoreRatio(SETTINGS_KEY("IgnoreRatio"))
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    , m_storeTorrentFormat(SETTINGS_KEY("TorrentFormat"), 1)
+#else
     , m_storeOptimizeAlignment(SETTINGS_KEY("OptimizeAlignment"), true)
     , m_paddedFileSizeLimit(SETTINGS_KEY("PaddedFileSizeLimit"), -1)
+#endif
     , m_storeLastAddPath(SETTINGS_KEY("LastAddPath"), QDir::homePath())
     , m_storeTrackerList(SETTINGS_KEY("TrackerList"))
     , m_storeWebSeedList(SETTINGS_KEY("WebSeedList"))
@@ -81,6 +84,12 @@ TorrentCreatorDialog::TorrentCreatorDialog(QWidget *parent, const QString &defau
     loadSettings();
     updateInputPath(defaultPath);
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    m_ui->checkOptimizeAlignment->hide();
+#else
+    m_ui->widgetTorrentFormat->hide();
+#endif
+
     show();
 }
 
@@ -118,11 +127,26 @@ int TorrentCreatorDialog::getPieceSize() const
     return pieceSizes[m_ui->comboPieceSize->currentIndex()] * 1024;
 }
 
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+BitTorrent::TorrentFormat TorrentCreatorDialog::getTorrentFormat() const
+{
+    switch (m_ui->comboTorrentFormat->currentIndex()) {
+    case 0:
+        return BitTorrent::TorrentFormat::V2;
+    case 1:
+        return BitTorrent::TorrentFormat::Hybrid;
+    case 2:
+        return BitTorrent::TorrentFormat::V1;
+    }
+    return BitTorrent::TorrentFormat::Hybrid;
+}
+#else
 int TorrentCreatorDialog::getPaddedFileSizeLimit() const
 {
     const int value = m_ui->spinPaddedFileSizeLimit->value();
     return ((value >= 0) ? (value * 1024) : -1);
 }
+#endif
 
 void TorrentCreatorDialog::dropEvent(QDropEvent *event)
 {
@@ -173,8 +197,13 @@ void TorrentCreatorDialog::onCreateButtonClicked()
         .replace(QRegularExpression("\n\n[\n]+"), "\n\n").split('\n');
     const BitTorrent::TorrentCreatorParams params {
         m_ui->checkPrivate->isChecked()
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+        , getTorrentFormat()
+#else
         , m_ui->checkOptimizeAlignment->isChecked()
-        , getPieceSize(), getPaddedFileSizeLimit()
+        , getPaddedFileSizeLimit()
+#endif
+        , getPieceSize()
         , input, destination
         , m_ui->txtComment->toPlainText()
         , m_ui->lineEditSource->text()
@@ -230,10 +259,14 @@ void TorrentCreatorDialog::updateProgressBar(int progress)
 void TorrentCreatorDialog::updatePiecesCount()
 {
     const QString path = m_ui->textInputPath->text().trimmed();
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    const int count = BitTorrent::TorrentCreatorThread::calculateTotalPieces(
+        path, getPieceSize(), getTorrentFormat());
+#else
     const bool isAlignmentOptimized = m_ui->checkOptimizeAlignment->isChecked();
-
     const int count = BitTorrent::TorrentCreatorThread::calculateTotalPieces(path
         , getPieceSize(), isAlignmentOptimized, getPaddedFileSizeLimit());
+#endif
     m_ui->labelTotalPieces->setText(QString::number(count));
 }
 
@@ -251,8 +284,12 @@ void TorrentCreatorDialog::setInteractionEnabled(const bool enabled) const
     m_ui->checkStartSeeding->setEnabled(enabled);
     m_ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(enabled);
     m_ui->checkIgnoreShareLimits->setEnabled(enabled && m_ui->checkStartSeeding->isChecked());
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    m_ui->widgetTorrentFormat->setEnabled(enabled);
+#else
     m_ui->checkOptimizeAlignment->setEnabled(enabled);
     m_ui->spinPaddedFileSizeLimit->setEnabled(enabled);
+#endif
 }
 
 void TorrentCreatorDialog::saveSettings()
@@ -263,8 +300,12 @@ void TorrentCreatorDialog::saveSettings()
     m_storePrivateTorrent = m_ui->checkPrivate->isChecked();
     m_storeStartSeeding = m_ui->checkStartSeeding->isChecked();
     m_storeIgnoreRatio = m_ui->checkIgnoreShareLimits->isChecked();
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    m_storeTorrentFormat = m_ui->comboTorrentFormat->currentIndex();
+#else
     m_storeOptimizeAlignment = m_ui->checkOptimizeAlignment->isChecked();
     m_paddedFileSizeLimit = m_ui->spinPaddedFileSizeLimit->value();
+#endif
 
     m_storeTrackerList = m_ui->trackersList->toPlainText();
     m_storeWebSeedList = m_ui->URLSeedsList->toPlainText();
@@ -283,8 +324,12 @@ void TorrentCreatorDialog::loadSettings()
     m_ui->checkStartSeeding->setChecked(m_storeStartSeeding);
     m_ui->checkIgnoreShareLimits->setChecked(m_storeIgnoreRatio);
     m_ui->checkIgnoreShareLimits->setEnabled(m_ui->checkStartSeeding->isChecked());
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    m_ui->comboTorrentFormat->setCurrentIndex(m_storeTorrentFormat);
+#else
     m_ui->checkOptimizeAlignment->setChecked(m_storeOptimizeAlignment);
     m_ui->spinPaddedFileSizeLimit->setValue(m_paddedFileSizeLimit);
+#endif
 
     m_ui->trackersList->setPlainText(m_storeTrackerList);
     m_ui->URLSeedsList->setPlainText(m_storeWebSeedList);

src/gui/torrentcreatordialog.h

@@ -30,15 +30,13 @@
 #ifndef TORRENTCREATORDIALOG_H
 #define TORRENTCREATORDIALOG_H
 
+#include <libtorrent/version.hpp>
+
 #include <QDialog>
 
+#include "base/bittorrent/torrentcreatorthread.h"
 #include "base/settingvalue.h"
 
-namespace BitTorrent
-{
-    class TorrentCreatorThread;
-}
-
 namespace Ui
 {
     class TorrentCreatorDialog;
@@ -71,7 +69,11 @@ private:
     void setInteractionEnabled(bool enabled) const;
 
     int getPieceSize() const;
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    BitTorrent::TorrentFormat getTorrentFormat() const;
+#else
     int getPaddedFileSizeLimit() const;
+#endif
 
     Ui::TorrentCreatorDialog *m_ui;
     BitTorrent::TorrentCreatorThread *m_creatorThread;
@@ -82,8 +84,12 @@ private:
     CachedSettingValue<bool> m_storePrivateTorrent;
     CachedSettingValue<bool> m_storeStartSeeding;
     CachedSettingValue<bool> m_storeIgnoreRatio;
+#if (LIBTORRENT_VERSION_NUM >= 20000)
+    CachedSettingValue<int> m_storeTorrentFormat;
+#else
     CachedSettingValue<bool> m_storeOptimizeAlignment;
     CachedSettingValue<int> m_paddedFileSizeLimit;
+#endif
     CachedSettingValue<QString> m_storeLastAddPath;
     CachedSettingValue<QString> m_storeTrackerList;
     CachedSettingValue<QString> m_storeWebSeedList;

src/gui/torrentcreatordialog.ui

@@ -30,8 +30,8 @@
        <rect>
         <x>0</x>
         <y>0</y>
-        <width>574</width>
+        <width>560</width>
-        <height>649</height>
+        <height>668</height>
        </rect>
       </property>
       <layout class="QVBoxLayout" name="verticalLayout_5">
@@ -120,6 +120,63 @@
           <string>Settings</string>
          </property>
          <layout class="QVBoxLayout" name="verticalLayout_2">
+          <item>
+           <widget class="QWidget" name="widgetTorrentFormat" native="true">
+            <layout class="QHBoxLayout" name="layoutTorrentFormat">
+             <property name="leftMargin">
+              <number>0</number>
+             </property>
+             <property name="topMargin">
+              <number>0</number>
+             </property>
+             <property name="rightMargin">
+              <number>0</number>
+             </property>
+             <property name="bottomMargin">
+              <number>0</number>
+             </property>
+             <item>
+              <widget class="QLabel" name="labelTorrentFormat">
+               <property name="text">
+                <string>Torrent format:</string>
+               </property>
+              </widget>
+             </item>
+             <item>
+              <widget class="QComboBox" name="comboTorrentFormat">
+               <item>
+                <property name="text">
+                 <string notr="true">V2</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string>Hybrid</string>
+                </property>
+               </item>
+               <item>
+                <property name="text">
+                 <string notr="true">V1</string>
+                </property>
+               </item>
+              </widget>
+             </item>
+             <item>
+              <spacer name="horizontalSpacer_2">
+               <property name="orientation">
+                <enum>Qt::Horizontal</enum>
+               </property>
+               <property name="sizeHint" stdset="0">
+                <size>
+                 <width>40</width>
+                 <height>20</height>
+                </size>
+               </property>
+              </spacer>
+             </item>
+            </layout>
+           </widget>
+          </item>
           <item>
            <layout class="QHBoxLayout" name="pieceSizeLayout">
             <item>