picotorrent · vktr · Jun 1, 2021 · May 15, 2021
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -126,6 +126,7 @@ add_executable(
     src/picotorrent/ui/dialogs/preferencesgeneralpage
     src/picotorrent/ui/dialogs/preferenceslabelspage
     src/picotorrent/ui/dialogs/preferencesproxypage
+    src/picotorrent/ui/dialogs/textoutputdialog
 
     # Filters
     src/picotorrent/ui/filters/pqltorrentfilter

diff --git a/lang/en-US.json b/lang/en-US.json
@@ -223,5 +223,9 @@
     "file_filter_all_files": "All files (*.*)|*.*",
     "ip_filter_enabled": "IP filter: ✔️",
     "ip_filter_disabled": "IP filter: ❌",
-    "copyright_text": "© 2015-2021"
+    "copyright_text": "© 2015-2021",
+    "export": "Export",
+    "magnet_link_s": "Magnet link(s)",
+    "torrent_file_s": "Torrent file(s)",
+    "exported_magnet_link_s": "Exported magnet link(s)"
 }
diff --git a/src/picotorrent/bittorrent/torrenthandle.hpp b/src/picotorrent/bittorrent/torrenthandle.hpp
@@ -60,12 +60,13 @@ namespace BitTorrent
         void ClearLabel();
         void SetLabel(int id, std::string const& name, bool muted = false);
 
+        libtorrent::torrent_handle& WrappedHandle();
+
     private:
         TorrentHandle(Session* session, libtorrent::torrent_handle const& th);
 
         void BuildStatus(libtorrent::torrent_status const& ts);
         std::unique_ptr<TorrentStatus> Update(libtorrent::torrent_status const& ts);
-        libtorrent::torrent_handle& WrappedHandle();
 
         Session* m_session;
         std::unique_ptr<libtorrent::torrent_handle> m_th;

diff --git a/src/picotorrent/ui/dialogs/textoutputdialog.cpp b/src/picotorrent/ui/dialogs/textoutputdialog.cpp
@@ -0,0 +1,41 @@
+#include "textoutputdialog.hpp"
+
+#include "../translator.hpp"
+
+using pt::UI::Dialogs::TextOutputDialog;
+
+TextOutputDialog::TextOutputDialog(wxWindow* parent, wxWindowID id, std::wstring const& title, std::wstring const& desc)
+    : wxDialog(parent, id, title, wxDefaultPosition, wxDefaultSize, wxDEFAULT_DIALOG_STYLE | wxRESIZE_BORDER),
+    m_outputText(new wxTextCtrl(this, wxID_ANY, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxHSCROLL | wxTE_MULTILINE))
+{
+    auto buttonsSizer = new wxBoxSizer(wxHORIZONTAL);
+    wxButton* ok = new wxButton(this, wxID_OK);
+    ok->SetDefault();
+
+    buttonsSizer->Add(ok);
+
+    auto mainSizer = new wxBoxSizer(wxVERTICAL);
+    mainSizer->AddSpacer(FromDIP(11));
+    mainSizer->Add(new wxStaticText(this, wxID_ANY, desc), 0, wxLEFT | wxRIGHT, FromDIP(11));
+    mainSizer->AddSpacer(FromDIP(5));
+    mainSizer->Add(m_outputText, 1, wxLEFT | wxRIGHT | wxEXPAND, FromDIP(11));
+    mainSizer->AddSpacer(FromDIP(7));
+    mainSizer->Add(buttonsSizer, 0, wxLEFT | wxRIGHT | wxBOTTOM | wxALIGN_RIGHT, FromDIP(11));
+
+    this->SetSizerAndFit(mainSizer);
+    this->SetSize(FromDIP(wxSize(400, 250)));
+
+    m_outputText->SetFocus();
+    m_outputText->SetFont(
+        wxFont(9, wxFONTFAMILY_TELETYPE, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL, false, wxT("Consolas")));
+}
+
+TextOutputDialog::~TextOutputDialog()
+{
+}
+
+void TextOutputDialog::SetOutputText(std::string const& text)
+{
+    m_outputText->SetValue(text);
+    m_outputText->SetInsertionPointEnd();
+}
diff --git a/src/picotorrent/ui/dialogs/textoutputdialog.hpp b/src/picotorrent/ui/dialogs/textoutputdialog.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include <wx/wxprec.h>
+#ifndef WX_PRECOMP
+#include <wx/wx.h>
+#endif
+
+#include <string>
+
+namespace pt
+{
+namespace UI
+{
+namespace Dialogs
+{
+    class TextOutputDialog : public wxDialog
+    {
+    public:
+        TextOutputDialog(wxWindow* parent, wxWindowID id, std::wstring const& title, std::wstring const& desc);
+        virtual ~TextOutputDialog();
+
+        void SetOutputText(std::string const& text);
+
+    private:
+        wxTextCtrl* m_outputText;
+    };
+}
+}
+}
diff --git a/src/picotorrent/ui/torrentcontextmenu.cpp b/src/picotorrent/ui/torrentcontextmenu.cpp
@@ -1,16 +1,21 @@
 #include "torrentcontextmenu.hpp"
 
 #include <filesystem>
+#include <fstream>
 
+#include <libtorrent/create_torrent.hpp>
+#include <libtorrent/magnet_uri.hpp>
 #include <wx/clipbrd.h>
 
 #include "../bittorrent/torrenthandle.hpp"
 #include "../bittorrent/torrentstatus.hpp"
 #include "../core/configuration.hpp"
 #include "../core/utils.hpp"
+#include "dialogs/textoutputdialog.hpp"
 #include "translator.hpp"
 
 namespace fs = std::filesystem;
+using pt::UI::Dialogs::TextOutputDialog;
 using pt::UI::TorrentContextMenu;
 
 TorrentContextMenu::TorrentContextMenu(wxWindow* parent, std::shared_ptr<pt::Core::Configuration> cfg, std::vector<pt::BitTorrent::TorrentHandle*> const& selectedTorrents)
@@ -28,6 +33,10 @@ TorrentContextMenu::TorrentContextMenu(wxWindow* parent, std::shared_ptr<pt::Cor
     removeMenu->Append(ptID_REMOVE, i18n("remove_torrent"));
     removeMenu->Append(ptID_REMOVE_FILES, i18n("remove_torrent_and_files"));
 
+    wxMenu* exportMenu = new wxMenu();
+    exportMenu->Append(ptID_EXPORT_MAGNET_LINK, i18n("magnet_link_s"));
+    exportMenu->Append(ptID_EXPORT_TORRENT_FILE, i18n("torrent_file_s"));
+
     bool allPaused = std::all_of(
         selectedTorrents.begin(),
         selectedTorrents.end(),
@@ -115,6 +124,7 @@ TorrentContextMenu::TorrentContextMenu(wxWindow* parent, std::shared_ptr<pt::Cor
     }
 
     AppendSeparator();
+    AppendSubMenu(exportMenu, i18n("export"));
     Append(ptID_MOVE, i18n("move"));
     AppendSubMenu(removeMenu, i18n("remove"));
     AppendSeparator();
@@ -139,6 +149,55 @@ TorrentContextMenu::TorrentContextMenu(wxWindow* parent, std::shared_ptr<pt::Cor
         [&](wxCommandEvent&) { for (auto t : selectedTorrents) { t->Pause(); } },
         TorrentContextMenu::ptID_PAUSE);
 
+    Bind(
+        wxEVT_MENU,
+        [&](wxCommandEvent&)
+        {
+            std::stringstream ss;
+
+            for (auto torrent : selectedTorrents)
+            {
+                ss << lt::make_magnet_uri(torrent->WrappedHandle()) << "\n";
+            }
+
+            TextOutputDialog dlg(m_parent, wxID_ANY, i18n("magnet_link_s"), i18n("exported_magnet_link_s"));
+            dlg.SetOutputText(ss.str());
+            dlg.ShowModal();
+        },
+        TorrentContextMenu::ptID_EXPORT_MAGNET_LINK);
+
+    Bind(
+        wxEVT_MENU,
+        [&](wxCommandEvent&)
+        {
+            wxDirDialog dlg(
+                m_parent,
+                i18n("select_destination"),
+                wxEmptyString,
+                wxDD_DIR_MUST_EXIST);
+
+            if (dlg.ShowModal() != wxID_OK)
+            {
+                return;
+            }
+
+            fs::path outputDir = Utils::toStdString(dlg.GetPath().ToStdWstring());
+
+            for (auto torrent : selectedTorrents)
+            {
+                if (auto tf = torrent->WrappedHandle().torrent_file_with_hashes())
+                {
+                    lt::create_torrent ct(*tf.get());
+                    lt::entry e = ct.generate();
+
+                    std::string fileName = tf->name() + ".torrent";
+                    std::ofstream out(outputDir / fileName, std::ios::binary);
+                    lt::bencode(std::ostreambuf_iterator<char>(out), e);
+                }
+            }
+        },
+        TorrentContextMenu::ptID_EXPORT_TORRENT_FILE);
+
     Bind(
         wxEVT_MENU,
         [&](wxCommandEvent&)

diff --git a/src/picotorrent/ui/torrentcontextmenu.hpp b/src/picotorrent/ui/torrentcontextmenu.hpp
@@ -45,6 +45,8 @@ namespace UI
             ptID_FORCE_RECHECK,
             ptID_FORCE_REANNOUNCE,
             ptID_SEQUENTIAL_DOWNLOAD,
+            ptID_EXPORT_MAGNET_LINK,
+            ptID_EXPORT_TORRENT_FILE,
             ptID_LABELS_NONE,
             ptID_LABELS_USER
         };