Use spinbox special value to represent "Use any available port"

WebAPI functionality is preserved (deprecated) for now and should be
removed in the future.

src/app/upgrade.cpp

@@ -102,12 +102,28 @@ namespace
         settingsStorage->storeValue(newKey, Utils::String::fromEnum(torrentContentLayout));
         settingsStorage->removeValue(oldKey);
     }
+
+    void upgradeListenPortSettings()
+    {
+        const auto oldKey = QString::fromLatin1("BitTorrent/Session/UseRandomPort");
+        const auto newKey = QString::fromLatin1("Preferences/Connection/PortRangeMin");
+        auto *settingsStorage = SettingsStorage::instance();
+
+        if (settingsStorage->hasKey(oldKey))
+        {
+            if (settingsStorage->loadValue<bool>(oldKey))
+                settingsStorage->storeValue(newKey, 0);
+
+            settingsStorage->removeValue(oldKey);
+        }
+    }
 }
 
 bool upgrade(const bool /*ask*/)
 {
     exportWebUIHttpsFiles();
     upgradeTorrentContentLayout();
+    upgradeListenPortSettings();
     return true;
 }
 

src/base/bittorrent/session.cpp

@@ -407,7 +407,6 @@ Session::Session(QObject *parent)
     , m_isBandwidthSchedulerEnabled(BITTORRENT_SESSION_KEY("BandwidthSchedulerEnabled"), false)
     , m_saveResumeDataInterval(BITTORRENT_SESSION_KEY("SaveResumeDataInterval"), 60)
     , m_port(BITTORRENT_SESSION_KEY("Port"), -1)
-    , m_useAnyAvailablePort(BITTORRENT_SESSION_KEY("UseRandomPort"), false)
     , m_networkInterface(BITTORRENT_SESSION_KEY("Interface"))
     , m_networkInterfaceName(BITTORRENT_SESSION_KEY("InterfaceName"))
     , m_networkInterfaceAddress(BITTORRENT_SESSION_KEY("InterfaceAddress"))
@@ -1421,13 +1420,12 @@ void Session::configureNetworkInterfaces(lt::settings_pack &settingsPack)
     if (m_listenInterfaceConfigured)
         return;
 
-    const int port = useAnyAvailablePort() ? 0 : this->port();
+    if (port() > 0)  // user has specified port number
-    if (port > 0)  // user specified port
         settingsPack.set_int(lt::settings_pack::max_retry_port_bind, 0);
 
     QStringList endpoints;
     QStringList outgoingInterfaces;
-    const QString portString = ':' + QString::number(port);
+    const QString portString = ':' + QString::number(port());
 
     for (const QString &ip : asConst(getListeningIPs()))
     {
@@ -2751,16 +2749,6 @@ void Session::setPort(const int port)
     }
 }
 
-bool Session::useAnyAvailablePort() const
-{
-    return m_useAnyAvailablePort;
-}
-
-void Session::setUseAnyAvailablePort(const bool value)
-{
-    m_useAnyAvailablePort = value;
-}
-
 QString Session::networkInterface() const
 {
     return m_networkInterface;

src/base/bittorrent/session.h

@@ -306,8 +306,6 @@ namespace BitTorrent
         void setSaveResumeDataInterval(int value);
         int port() const;
         void setPort(int port);
-        bool useAnyAvailablePort() const;
-        void setUseAnyAvailablePort(bool value);
         QString networkInterface() const;
         void setNetworkInterface(const QString &iface);
         QString networkInterfaceName() const;
@@ -722,7 +720,6 @@ namespace BitTorrent
         CachedSettingValue<bool> m_isBandwidthSchedulerEnabled;
         CachedSettingValue<int> m_saveResumeDataInterval;
         CachedSettingValue<int> m_port;
-        CachedSettingValue<bool> m_useAnyAvailablePort;
         CachedSettingValue<QString> m_networkInterface;
         CachedSettingValue<QString> m_networkInterfaceName;
         CachedSettingValue<QString> m_networkInterfaceAddress;

src/base/settingsstorage.cpp

@@ -234,6 +234,13 @@ void SettingsStorage::removeValue(const QString &key)
     }
 }
 
+bool SettingsStorage::hasKey(const QString &key) const
+{
+    const QString realKey = mapKey(key);
+    const QReadLocker locker {&m_lock};
+    return m_data.contains(realKey);
+}
+
 QVariantHash TransactionalSettings::read() const
 {
     QVariantHash res;

src/base/settingsstorage.h

@@ -79,6 +79,7 @@ public:
     }
 
     void removeValue(const QString &key);
+    bool hasKey(const QString &key) const;
 
 public slots:
     bool save();

src/gui/optionsdialog.cpp

@@ -300,7 +300,6 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     void (QSpinBox::*qSpinBoxValueChanged)(int) = &QSpinBox::valueChanged;
 
     connect(m_ui->comboProxyType, qComboBoxCurrentIndexChanged, this, &ThisType::enableProxy);
-    connect(m_ui->useAnyPort, &QAbstractButton::toggled, m_ui->spinPort, &ThisType::setDisabled);
 
     // Apply button is activated when a value is changed
     // Behavior tab
@@ -408,7 +407,6 @@ OptionsDialog::OptionsDialog(QWidget *parent)
     // Connection tab
     connect(m_ui->comboProtocol, qComboBoxCurrentIndexChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->spinPort, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
-    connect(m_ui->useAnyPort, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkUPnP, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->spinUploadLimit, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
     connect(m_ui->spinDownloadLimit, qSpinBoxValueChanged, this, &ThisType::enableApplyButton);
@@ -770,7 +768,6 @@ void OptionsDialog::saveOptions()
     // Connection preferences
     session->setBTProtocol(static_cast<BitTorrent::BTProtocol>(m_ui->comboProtocol->currentIndex()));
     session->setPort(getPort());
-    session->setUseAnyAvailablePort(m_ui->useAnyPort->isChecked());
     Net::PortForwarder::instance()->setEnabled(isUPnPEnabled());
     session->setGlobalDownloadSpeedLimit(m_ui->spinDownloadLimit->value() * 1024);
     session->setGlobalUploadSpeedLimit(m_ui->spinUploadLimit->value() * 1024);
@@ -1067,10 +1064,8 @@ void OptionsDialog::loadOptions()
 
     // Connection preferences
     m_ui->comboProtocol->setCurrentIndex(static_cast<int>(session->btProtocol()));
-    m_ui->checkUPnP->setChecked(Net::PortForwarder::instance()->isEnabled());
-    m_ui->useAnyPort->setChecked(session->useAnyAvailablePort());
     m_ui->spinPort->setValue(session->port());
-    m_ui->spinPort->setDisabled(m_ui->useAnyPort->isChecked());
+    m_ui->checkUPnP->setChecked(Net::PortForwarder::instance()->isEnabled());
 
     intValue = session->maxConnections();
     if (intValue > 0)

src/gui/optionsdialog.ui

@@ -1457,15 +1457,12 @@ Manual: Various torrent properties (e.g. save path) must be assigned manually</s
                  </item>
                  <item>
                   <widget class="QSpinBox" name="spinPort">
-                   <property name="minimum">
+                   <property name="specialValueText">
-                    <number>1</number>
+                    <string>Any</string>
                    </property>
                    <property name="maximum">
                     <number>65535</number>
                    </property>
-                   <property name="value">
-                    <number>8999</number>
-                   </property>
                   </widget>
                  </item>
                  <item>
@@ -1490,13 +1487,6 @@ Manual: Various torrent properties (e.g. save path) must be assigned manually</s
                  </item>
                 </layout>
                </item>
-               <item>
-                <widget class="QCheckBox" name="useAnyPort">
-                 <property name="text">
-                  <string>Use any available port</string>
-                 </property>
-                </widget>
-               </item>
                <item>
                 <widget class="QCheckBox" name="checkUPnP">
                  <property name="text">
@@ -3469,7 +3459,6 @@ Use ';' to split multiple entries. Can use wildcard '*'.</string>
   <tabstop>customThemeFilePath</tabstop>
   <tabstop>checkStartPaused</tabstop>
   <tabstop>spinPort</tabstop>
-  <tabstop>useAnyPort</tabstop>
   <tabstop>checkUPnP</tabstop>
   <tabstop>textWebUiUsername</tabstop>
   <tabstop>checkWebUi</tabstop>

src/webui/api/appcontroller.cpp

@@ -153,8 +153,8 @@ void AppController::preferencesAction()
     // Connection
     // Listening Port
     data["listen_port"] = session->port();
+    data["random_port"] = (session->port() == 0);  // deprecated
     data["upnp"] = Net::PortForwarder::instance()->isEnabled();
-    data["random_port"] = session->useAnyAvailablePort();
     // Connections Limits
     data["max_connec"] = session->maxConnections();
     data["max_connec_per_torrent"] = session->maxConnectionsPerTorrent();
@@ -482,12 +482,16 @@ void AppController::setPreferencesAction()
 
     // Connection
     // Listening Port
-    if (hasKey("listen_port"))
+    if (hasKey("random_port") && it.value().toBool())  // deprecated
+    {
+        session->setPort(0);
+    }
+    else if (hasKey("listen_port"))
+    {
         session->setPort(it.value().toInt());
+    }
     if (hasKey("upnp"))
         Net::PortForwarder::instance()->setEnabled(it.value().toBool());
-    if (hasKey("random_port"))
-        session->setUseAnyAvailablePort(it.value().toBool());
     // Connections Limits
     if (hasKey("max_connec"))
         session->setMaxConnections(it.value().toInt());

src/webui/www/private/views/preferences.html

@@ -234,10 +234,6 @@
             <input type="text" id="port_value" style="width: 4em;" />
             <button style="margin-left: 1em;" onclick="qBittorrent.Preferences.generateRandomPort();">QBT_TR(Random)QBT_TR[CONTEXT=OptionsDialog]</button>
         </div>
-        <div class="formRow">
-            <input type="checkbox" id="useAnyPortCheckbox" onclick="qBittorrent.Preferences.updatePortValueEnabled();" />
-            <label for="useAnyPortCheckbox">QBT_TR(Use any available port)QBT_TR[CONTEXT=OptionsDialog]</label>
-        </div>
         <div class="formRow">
             <input type="checkbox" id="upnp_checkbox" />
             <label for="upnp_checkbox">QBT_TR(Use UPnP / NAT-PMP port forwarding from my router)QBT_TR[CONTEXT=OptionsDialog]</label>
@@ -1275,7 +1271,6 @@
                 updateMailAuthSettings: updateMailAuthSettings,
                 updateAutoRun: updateAutoRun,
                 generateRandomPort: generateRandomPort,
-                updatePortValueEnabled: updatePortValueEnabled,
                 updateMaxConnecEnabled: updateMaxConnecEnabled,
                 updateMaxConnecPerTorrentEnabled: updateMaxConnecPerTorrentEnabled,
                 updateMaxUploadsEnabled: updateMaxUploadsEnabled,
@@ -1404,10 +1399,6 @@
         };
 
         // Connection tab
-        const updatePortValueEnabled = function() {
-            const checked = $('useAnyPortCheckbox').getProperty('checked');
-            $('port_value').setProperty('disabled', checked);
-        };
 
         const updateMaxConnecEnabled = function() {
             const isMaxConnecEnabled = $('max_connec_checkbox').getProperty('checked');
@@ -1708,8 +1699,6 @@
                         // Listening Port
                         $('port_value').setProperty('value', pref.listen_port.toInt());
                         $('upnp_checkbox').setProperty('checked', pref.upnp);
-                        $('useAnyPortCheckbox').setProperty('checked', pref.random_port);
-                        updatePortValueEnabled();
 
                         // Connections Limits
                         const max_connec = pref.max_connec.toInt();
@@ -2018,13 +2007,12 @@
             // Connection tab
             // Listening Port
             const listen_port = $('port_value').getProperty('value').toInt();
-            if (isNaN(listen_port) || listen_port < 1 || listen_port > 65535) {
+            if (isNaN(listen_port) || (listen_port < 0) || (listen_port > 65535)) {
-                alert("QBT_TR(The port used for incoming connections must be between 1 and 65535.)QBT_TR[CONTEXT=HttpServer]");
+                alert("QBT_TR(The port used for incoming connections must be between 0 and 65535.)QBT_TR[CONTEXT=HttpServer]");
                 return;
             }
             settings.set('listen_port', listen_port);
             settings.set('upnp', $('upnp_checkbox').getProperty('checked'));
-            settings.set('random_port', $('useAnyPortCheckbox').getProperty('checked'));
 
             // Connections Limits
             let max_connec = -1;