Allow to set qBittorrent as default program

Register qBittorrent as possible default program for .torrent files and
magnet links during install.

PR #19446.

dist/windows/installer.nsh

@@ -32,6 +32,27 @@ Section $(inst_qbt_req) ;"qBittorrent (required)"
   ; Write the installation path into the registry
   WriteRegStr HKLM "Software\qBittorrent" "InstallLocation" "$INSTDIR"
 
+  ; Register qBittorrent as possible default program for .torrent files and magnet links
+  WriteRegStr HKLM "Software\qBittorrent\Capabilities" "ApplicationDescription" "A BitTorrent client in Qt"
+  WriteRegStr HKLM "Software\qBittorrent\Capabilities" "ApplicationName" "qBittorrent"
+  WriteRegStr HKLM "Software\qBittorrent\Capabilities\FileAssociations" ".torrent" "qBittorrent.File.Torrent"
+  WriteRegStr HKLM "Software\qBittorrent\Capabilities\UrlAssociations" "magnet" "qBittorrent.Url.Magnet"
+  WriteRegStr HKLM "Software\RegisteredApplications" "qBittorrent" "Software\qBittorrent\Capabilities"
+  ; Register qBittorrent ProgIDs
+  WriteRegStr HKLM "Software\Classes\qBittorrent.File.Torrent" "" "Torrent File"
+  WriteRegStr HKLM "Software\Classes\qBittorrent.File.Torrent\DefaultIcon" "" '"$INSTDIR\qbittorrent.exe",1'
+  WriteRegStr HKLM "Software\Classes\qBittorrent.File.Torrent\shell\open\command" "" '"$INSTDIR\qbittorrent.exe" "%1"'
+  WriteRegStr HKLM "Software\Classes\qBittorrent.Url.Magnet" "" "Magnet URI"
+  WriteRegStr HKLM "Software\Classes\qBittorrent.Url.Magnet\DefaultIcon" "" '"$INSTDIR\qbittorrent.exe",1'
+  WriteRegStr HKLM "Software\Classes\qBittorrent.Url.Magnet\shell\open\command" "" '"$INSTDIR\qbittorrent.exe" "%1"'
+
+  WriteRegStr HKLM "Software\Classes\.torrent" "Content Type" "application/x-bittorrent"
+  WriteRegStr HKLM "Software\Classes\magnet" "" "URL:Magnet URI"
+  WriteRegStr HKLM "Software\Classes\magnet" "Content Type" "application/x-magnet"
+  WriteRegStr HKLM "Software\Classes\magnet" "URL Protocol" ""
+
+  System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, p 0, p 0)'
+
   ; Write the uninstall keys for Windows
   WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\qBittorrent" "DisplayName" "qBittorrent"
   WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\qBittorrent" "UninstallString" '"$INSTDIR\uninst.exe"'
@@ -46,13 +67,6 @@ Section $(inst_qbt_req) ;"qBittorrent (required)"
   IntFmt $0 "0x%08X" $0
   WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\qBittorrent" "EstimatedSize" "$0"
 
-  ; qBittorrent ProgID
-  WriteRegStr HKLM "Software\Classes\qBittorrent" "" "qBittorrent Torrent File"
-  WriteRegStr HKLM "Software\Classes\qBittorrent" "FriendlyTypeName" "qBittorrent Torrent File"
-  WriteRegStr HKLM "Software\Classes\qBittorrent\shell" "" "open"
-  WriteRegStr HKLM "Software\Classes\qBittorrent\shell\open\command" "" '"$INSTDIR\qbittorrent.exe" "%1"'
-  WriteRegStr HKLM "Software\Classes\qBittorrent\DefaultIcon" "" '"$INSTDIR\qbittorrent.exe",1'
-
 SectionEnd
 
 ; Optional section (can be disabled by the user)
@@ -82,72 +96,6 @@ Function inst_startup_user
 
 FunctionEnd
 
-Section $(inst_torrent) ;"Open .torrent files with qBittorrent"
-
-  ReadRegStr $0 HKLM "Software\Classes\.torrent" ""
-
-  StrCmp $0 "qBittorrent" clear_errors 0
-  ;Check if empty string
-  StrCmp $0 "" clear_errors 0
-  ;Write old value to OpenWithProgIds
-  WriteRegStr HKLM "Software\Classes\.torrent\OpenWithProgIds" $0 ""
-
-  clear_errors:
-  ClearErrors
-
-  WriteRegStr HKLM "Software\Classes\.torrent" "" "qBittorrent"
-  WriteRegStr HKLM "Software\Classes\.torrent" "Content Type" "application/x-bittorrent"
-
-  !insertmacro UAC_AsUser_Call Function inst_torrent_user ${UAC_SYNCREGISTERS}|${UAC_SYNCOUTDIR}|${UAC_SYNCINSTDIR}
-
-  System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, p 0, p 0)'
-
-SectionEnd
-
-Function inst_torrent_user
-
-  ReadRegStr $0 HKCU "Software\Classes\.torrent" ""
-
-  StrCmp $0 "qBittorrent" clear_errors 0
-  ;Check if empty string
-  StrCmp $0 "" clear_errors 0
-  ;Write old value to OpenWithProgIds
-  WriteRegStr HKCU "Software\Classes\.torrent\OpenWithProgIds" $0 ""
-
-  clear_errors:
-  ClearErrors
-
-  WriteRegStr HKCU "Software\Classes\.torrent" "" "qBittorrent"
-  WriteRegStr HKCU "Software\Classes\.torrent" "Content Type" "application/x-bittorrent"
-
-FunctionEnd
-
-Section $(inst_magnet) ;"Open magnet links with qBittorrent"
-
-  WriteRegStr HKLM "Software\Classes\magnet" "" "URL:Magnet link"
-  WriteRegStr HKLM "Software\Classes\magnet" "Content Type" "application/x-magnet"
-  WriteRegStr HKLM "Software\Classes\magnet" "URL Protocol" ""
-  WriteRegStr HKLM "Software\Classes\magnet\DefaultIcon" "" '"$INSTDIR\qbittorrent.exe",1'
-  WriteRegStr HKLM "Software\Classes\magnet\shell" "" "open"
-  WriteRegStr HKLM "Software\Classes\magnet\shell\open\command" "" '"$INSTDIR\qbittorrent.exe" "%1"'
-
-  !insertmacro UAC_AsUser_Call Function inst_magnet_user ${UAC_SYNCREGISTERS}|${UAC_SYNCOUTDIR}|${UAC_SYNCINSTDIR}
-
-  System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, p 0, p 0)'
-
-SectionEnd
-
-Function inst_magnet_user
-
-  WriteRegStr HKCU "Software\Classes\magnet" "" "URL:Magnet link"
-  WriteRegStr HKCU "Software\Classes\magnet" "Content Type" "application/x-magnet"
-  WriteRegStr HKCU "Software\Classes\magnet" "URL Protocol" ""
-  WriteRegStr HKCU "Software\Classes\magnet\DefaultIcon" "" '"$INSTDIR\qbittorrent.exe",1'
-  WriteRegStr HKCU "Software\Classes\magnet\shell" "" "open"
-  WriteRegStr HKCU "Software\Classes\magnet\shell\open\command" "" '"$INSTDIR\qbittorrent.exe" "%1"'
-
-FunctionEnd
-
 Section $(inst_firewall)
 
   DetailPrint $(inst_firewallinfo)

dist/windows/uninstaller.nsh

@@ -19,48 +19,14 @@ Section "un.$(remove_shortcuts)" ;"un.Remove shortcuts"
   Delete "$DESKTOP\qBittorrent.lnk"
 SectionEnd
 
-Section "un.$(remove_associations)" ;"un.Remove file associations"
-  SectionIn RO
-  ReadRegStr $0 HKLM "Software\Classes\.torrent" ""
-  StrCmp $0 "qBittorrent" 0 torrent_end
-  DetailPrint "$(uninst_tor_warn) $0"
-  DeleteRegValue HKLM "Software\Classes\.torrent" ""
-  DeleteRegKey /ifempty HKLM "Software\Classes\.torrent"
-  torrent_end:
-
-  ReadRegStr $0 HKLM "Software\Classes\magnet\shell\open\command" ""
-  StrCmp $0 '"$INSTDIR\qbittorrent.exe" "%1"' 0 magnet_end
-  DetailPrint "$(uninst_mag_warn) $0"
-  DeleteRegKey HKLM "Software\Classes\magnet"
-  magnet_end:
-
-  !insertmacro UAC_AsUser_Call Function un.remove_associations_user ${UAC_SYNCREGISTERS}|${UAC_SYNCOUTDIR}|${UAC_SYNCINSTDIR}
-
-  System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, p 0, p 0)'
-SectionEnd
-
-Function un.remove_associations_user
-  ReadRegStr $0 HKCU "Software\Classes\.torrent" ""
-  StrCmp $0 "qBittorrent" 0 torrent_end
-  DetailPrint "$(uninst_tor_warn) $0"
-  DeleteRegValue HKCU "Software\Classes\.torrent" ""
-  DeleteRegKey /ifempty HKCU "Software\Classes\.torrent"
-  torrent_end:
-
-  ReadRegStr $0 HKCU "Software\Classes\magnet\shell\open\command" ""
-  StrCmp $0 '"$INSTDIR\qbittorrent.exe" "%1"' 0 magnet_end
-  DetailPrint "$(uninst_mag_warn) $0"
-  DeleteRegKey HKCU "Software\Classes\magnet"
-  magnet_end:
-FunctionEnd
-
 Section "un.$(remove_registry)" ;"un.Remove registry keys"
   SectionIn RO
   ; Remove registry keys
   DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\qBittorrent"
   DeleteRegKey HKLM "Software\qBittorrent"
-  DeleteRegKey HKLM "Software\Classes\qBittorrent"
-
+  ; Remove ProgIDs
+  DeleteRegKey HKLM "Software\Classes\qBittorrent.File.Torrent"
+  DeleteRegKey HKLM "Software\Classes\qBittorrent.Url.Magnet"
   System::Call 'Shell32::SHChangeNotify(i ${SHCNE_ASSOCCHANGED}, i ${SHCNF_IDLIST}, p 0, p 0)'
 SectionEnd
 

src/app/application.cpp

@@ -885,23 +885,6 @@ int Application::exec()
 #endif
         m_window = new MainWindow(this, windowState);
         delete m_startupProgressDialog;
-#ifdef Q_OS_WIN
-        auto *pref = Preferences::instance();
-        if (!pref->neverCheckFileAssoc() && (!Utils::OS::isTorrentFileAssocSet() || !Utils::OS::isMagnetLinkAssocSet()))
-        {
-            if (QMessageBox::question(m_window, tr("Torrent file association")
-                                      , tr("qBittorrent is not the default application for opening torrent files or Magnet links.\nDo you want to make qBittorrent the default application for these?")
-                                      , QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes) == QMessageBox::Yes)
-            {
-                Utils::OS::setTorrentFileAssoc(true);
-                Utils::OS::setMagnetLinkAssoc(true);
-            }
-            else
-            {
-                pref->setNeverCheckFileAssoc();
-            }
-        }
-#endif // Q_OS_WIN
 #endif // DISABLE_GUI
 
 #ifndef DISABLE_WEBUI

src/base/preferences.cpp

@@ -1293,21 +1293,6 @@ void Preferences::setRecursiveDownloadEnabled(const bool enable)
     setValue(u"Preferences/Advanced/DisableRecursiveDownload"_s, !enable);
 }
 
-#ifdef Q_OS_WIN
-bool Preferences::neverCheckFileAssoc() const
-{
-    return value(u"Preferences/Win32/NeverCheckFileAssocation"_s, false);
-}
-
-void Preferences::setNeverCheckFileAssoc(const bool check)
-{
-    if (check == neverCheckFileAssoc())
-        return;
-
-    setValue(u"Preferences/Win32/NeverCheckFileAssocation"_s, check);
-}
-#endif // Q_OS_WIN
-
 int Preferences::getTrackerPort() const
 {
     return value<int>(u"Preferences/Advanced/trackerPort"_s, 9000);

src/base/preferences.h

@@ -287,11 +287,6 @@ public:
 #endif
     bool isRecursiveDownloadEnabled() const;
     void setRecursiveDownloadEnabled(bool enable);
-#ifdef Q_OS_WIN
-    bool neverCheckFileAssoc() const;
-    void setNeverCheckFileAssoc(bool check = true);
-#endif
-
     int getTrackerPort() const;
     void setTrackerPort(int port);
     bool isTrackerPortForwardingEnabled() const;

src/base/utils/os.cpp

@@ -34,18 +34,8 @@
 #include <CoreServices/CoreServices.h>
 #endif // Q_OS_MACOS
 
-#ifdef Q_OS_WIN
-#include <shlobj.h>
-#endif // Q_OS_WIN
-
 #include <QString>
 
-#ifdef Q_OS_WIN
-#include <QCoreApplication>
-#include <QRegularExpression>
-#include <QSettings>
-#endif // Q_OS_WIN
-
 #include "base/global.h"
 #include "base/path.h"
 
@@ -114,81 +104,3 @@ void Utils::OS::setMagnetLinkAssoc()
         ::LSSetDefaultHandlerForURLScheme(magnetUrlScheme, myBundleId);
 }
 #endif // Q_OS_MACOS
-
-#ifdef Q_OS_WIN
-bool Utils::OS::isTorrentFileAssocSet()
-{
-    const QSettings settings(u"HKEY_CURRENT_USER\\Software\\Classes"_s, QSettings::NativeFormat);
-    return settings.value(u".torrent/Default"_s).toString() == u"qBittorrent";
-}
-
-void Utils::OS::setTorrentFileAssoc(const bool set)
-{
-    if (set == isTorrentFileAssocSet())
-        return;
-
-    QSettings settings(u"HKEY_CURRENT_USER\\Software\\Classes"_s, QSettings::NativeFormat);
-
-    if (set)
-    {
-        const QString oldProgId = settings.value(u".torrent/Default"_s).toString();
-        if (!oldProgId.isEmpty() && (oldProgId != u"qBittorrent"))
-            settings.setValue((u".torrent/OpenWithProgids/" + oldProgId), QString());
-
-        settings.setValue(u".torrent/Default"_s, u"qBittorrent"_s);
-        settings.setValue(u".torrent/Content Type"_s, u"application/x-bittorrent"_s);
-    }
-    else
-    {
-        settings.setValue(u".torrent/Default"_s, QString());
-    }
-
-    ::SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, nullptr, nullptr);
-}
-
-bool Utils::OS::isMagnetLinkAssocSet()
-{
-    const QSettings settings(u"HKEY_CURRENT_USER\\Software\\Classes"_s, QSettings::NativeFormat);
-    const QString shellCommand = settings.value(u"magnet/shell/open/command/Default"_s).toString();
-
-    const QRegularExpressionMatch exeRegMatch = QRegularExpression(u"\"([^\"]+)\".*"_s).match(shellCommand);
-    if (!exeRegMatch.hasMatch())
-        return false;
-
-    const Path assocExe {exeRegMatch.captured(1)};
-    if (assocExe != Path(qApp->applicationFilePath()))
-        return false;
-
-    return true;
-}
-
-void Utils::OS::setMagnetLinkAssoc(const bool set)
-{
-    if (set == isMagnetLinkAssocSet())
-        return;
-
-    QSettings settings(u"HKEY_CURRENT_USER\\Software\\Classes"_s, QSettings::NativeFormat);
-
-    if (set)
-    {
-        const QString applicationFilePath = Path(qApp->applicationFilePath()).toString();
-        const QString commandStr = u'"' + applicationFilePath + u"\" \"%1\"";
-        const QString iconStr = u'"' + applicationFilePath + u"\",1";
-
-        settings.setValue(u"magnet/Default"_s, u"URL:Magnet link"_s);
-        settings.setValue(u"magnet/Content Type"_s, u"application/x-magnet"_s);
-        settings.setValue(u"magnet/DefaultIcon/Default"_s, iconStr);
-        settings.setValue(u"magnet/shell/Default"_s, u"open"_s);
-        settings.setValue(u"magnet/shell/open/command/Default"_s, commandStr);
-        settings.setValue(u"magnet/URL Protocol"_s, QString());
-    }
-    else
-    {
-        // only wipe values that are specific to qbt
-        settings.setValue(u"magnet/DefaultIcon/Default"_s, QString());
-        settings.setValue(u"magnet/shell/open/command/Default"_s, QString());
-    }
-
-    ::SHChangeNotify(SHCNE_ASSOCCHANGED, SHCNF_IDLIST, nullptr, nullptr);
-}
-#endif // Q_OS_WIN

src/base/utils/os.h

@@ -40,11 +40,4 @@ namespace Utils::OS
     bool isMagnetLinkAssocSet();
     void setMagnetLinkAssoc();
 #endif // Q_OS_MACOS
-
-#ifdef Q_OS_WIN
-    bool isTorrentFileAssocSet();
-    void setTorrentFileAssoc(bool set);
-    bool isMagnetLinkAssocSet();
-    void setMagnetLinkAssoc(bool set);
-#endif // Q_OS_WIN
 }

src/gui/optionsdialog.cpp

@@ -1,5 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2023  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or
@@ -55,6 +56,7 @@
 #include "base/utils/io.h"
 #include "base/utils/misc.h"
 #include "base/utils/net.h"
+#include "base/utils/os.h"
 #include "base/utils/password.h"
 #include "base/utils/random.h"
 #include "addnewtorrentdialog.h"
@@ -287,8 +289,6 @@ void OptionsDialog::loadBehaviorTabOptions()
 
 #ifdef Q_OS_WIN
     m_ui->checkStartup->setChecked(pref->WinStartup());
-    m_ui->checkAssociateTorrents->setChecked(Utils::OS::isTorrentFileAssocSet());
-    m_ui->checkAssociateMagnetLinks->setChecked(Utils::OS::isMagnetLinkAssocSet());
 #endif
 
 #ifdef Q_OS_MACOS
@@ -369,12 +369,23 @@ void OptionsDialog::loadBehaviorTabOptions()
     connect(m_ui->checkPreventFromSuspendWhenDownloading, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkPreventFromSuspendWhenSeeding, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
 
-#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
+#if defined(Q_OS_MACOS)
     connect(m_ui->checkAssociateTorrents, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
     connect(m_ui->checkAssociateMagnetLinks, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
+#endif
+
+#if defined(Q_OS_WIN) || defined(Q_OS_MACOS)
     connect(m_ui->checkProgramUpdates, &QAbstractButton::toggled, this, &ThisType::enableApplyButton);
 #endif
 
+#ifdef Q_OS_WIN
+    m_ui->assocPanel->hide();
+#endif
+
+#ifdef Q_OS_MAC
+    m_ui->defaultProgramPanel->hide();
+#endif
+
 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)) && !defined(QBT_USES_DBUS)
     m_ui->checkPreventFromSuspendWhenDownloading->setDisabled(true);
     m_ui->checkPreventFromSuspendWhenSeeding->setDisabled(true);
@@ -435,9 +446,6 @@ void OptionsDialog::saveBehaviorTabOptions() const
 
 #ifdef Q_OS_WIN
     pref->setWinStartup(WinStartup());
-
-    Utils::OS::setTorrentFileAssoc(m_ui->checkAssociateTorrents->isChecked());
-    Utils::OS::setMagnetLinkAssoc(m_ui->checkAssociateMagnetLinks->isChecked());
 #endif
 
 #ifndef Q_OS_MACOS

src/gui/optionsdialog.h

@@ -1,5 +1,6 @@
 /*
  * Bittorrent Client using Qt and libtorrent.
+ * Copyright (C) 2023  Vladimir Golovnev <glassez@yandex.ru>
  * Copyright (C) 2006  Christophe Dumez <chris@qbittorrent.org>
  *
  * This program is free software; you can redistribute it and/or

src/gui/optionsdialog.ui

@@ -568,6 +568,21 @@
                   <string>File association</string>
                  </property>
                  <layout class="QVBoxLayout" name="verticalLayout_28">
+                  <item>
+                   <widget class="QWidget" name="assocPanel" native="true">
+                    <layout class="QVBoxLayout" name="assocPanelLayout">
+                     <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="QCheckBox" name="checkAssociateTorrents">
                        <property name="text">
@@ -585,6 +600,34 @@
                     </layout>
                    </widget>
                   </item>
+                  <item>
+                   <widget class="QWidget" name="defaultProgramPanel" native="true">
+                    <layout class="QVBoxLayout" name="defaultProgramPanelLayout">
+                     <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="labelSetAssoc">
+                       <property name="text">
+                        <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;To set qBittorrent as default program for .torrent files and/or Magnet links&lt;br/&gt;you can use &lt;span style=&quot; font-weight:600;&quot;&gt;Default Programs&lt;/span&gt; dialog from &lt;span style=&quot; font-weight:600;&quot;&gt;Control Panel&lt;/span&gt;.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+                       </property>
+                      </widget>
+                     </item>
+                    </layout>
+                   </widget>
+                  </item>
+                 </layout>
+                </widget>
+               </item>
                <item>
                 <widget class="QCheckBox" name="checkProgramUpdates">
                  <property name="text">