Merge pull request #10074 from Chocobo1/magneturi

Drop support for "BC Link" format

src/base/bittorrent/magneturi.cpp

@@ -31,29 +31,26 @@
 #include <libtorrent/bencode.hpp>
 #include <libtorrent/error_code.hpp>
 #include <libtorrent/magnet_uri.hpp>
+#include <libtorrent/sha1_hash.hpp>
 
-#include <QByteArray>
 #include <QRegularExpression>
-#include <QStringList>
-
-#include "base/utils/string.h"
 
 namespace
 {
-    QString bcLinkToMagnet(QString bcLink)
+    bool isBitTorrentInfoHash(const QString &string)
     {
-        QByteArray rawBc = bcLink.toUtf8();
-        rawBc = rawBc.mid(8); // skip bc://bt/
-        rawBc = QByteArray::fromBase64(rawBc); // Decode base64
-        // Format is now AA/url_encoded_filename/size_bytes/info_hash/ZZ
-        QStringList parts = QString(rawBc).split('/');
-        if (parts.size() != 5) return QString();
-
-        QString filename = parts.at(1);
-        QString hash = parts.at(3);
-        QString magnet = "magnet:?xt=urn:btih:" + hash;
-        magnet += "&dn=" + filename;
-        return magnet;
+        // There are 2 represenations for BitTorrent info hash:
+        // 1. 40 chars hex-encoded string
+        //      == 20 (SHA-1 length in bytes) * 2 (each byte maps to 2 hex characters)
+        // 2. 32 chars Base32 encoded string
+        //      == 20 (SHA-1 length in bytes) * 1.6 (the efficiency of Base32 encoding)
+        const int SHA1_HEX_SIZE = libtorrent::sha1_hash::size * 2;
+        const int SHA1_BASE32_SIZE = libtorrent::sha1_hash::size * 1.6;
+
+        return ((((string.size() == SHA1_HEX_SIZE))
+                && !string.contains(QRegularExpression(QLatin1String("[^0-9A-Fa-f]"))))
+            || ((string.size() == SHA1_BASE32_SIZE)
+                && !string.contains(QRegularExpression(QLatin1String("[^2-7A-Za-z]")))));
     }
 }
 
@@ -66,17 +63,11 @@ MagnetUri::MagnetUri(const QString &source)
 {
     if (source.isEmpty()) return;
 
-    if (source.startsWith("bc://bt/", Qt::CaseInsensitive)) {
-        qDebug("Creating magnet link from bc link");
-        m_url = bcLinkToMagnet(source);
-    }
-    else if (((source.size() == 40) && !source.contains(QRegularExpression("[^0-9A-Fa-f]")))
-             || ((source.size() == 32) && !source.contains(QRegularExpression("[^2-7A-Za-z]")))) {
-        m_url = "magnet:?xt=urn:btih:" + source;
-    }
+    if (isBitTorrentInfoHash(source))
+        m_url = QLatin1String("magnet:?xt=urn:btih:") + source;
 
     libt::error_code ec;
-    libt::parse_magnet_uri(m_url.toUtf8().constData(), m_addTorrentParams, ec);
+    libt::parse_magnet_uri(m_url.toStdString(), m_addTorrentParams, ec);
     if (ec) return;
 
     m_valid = true;
@@ -84,10 +75,10 @@ MagnetUri::MagnetUri(const QString &source)
     m_name = QString::fromStdString(m_addTorrentParams.name);
 
     for (const std::string &tracker : m_addTorrentParams.trackers)
-        m_trackers.append(QString::fromStdString(tracker));
+        m_trackers.append(TrackerEntry(tracker));
 
     for (const std::string &urlSeed : m_addTorrentParams.url_seeds)
-        m_urlSeeds.append(QUrl(urlSeed.c_str()));
+        m_urlSeeds.append(QUrl(QString::fromStdString(urlSeed)));
 }
 
 bool MagnetUri::isValid() const

src/base/bittorrent/session.cpp

@@ -2090,14 +2090,11 @@ TorrentStatusReport Session::torrentStatusReport() const
     return m_torrentStatusReport;
 }
 
-// source - .torrent file path/url or magnet uri
-bool Session::addTorrent(QString source, const AddTorrentParams &params)
+bool Session::addTorrent(const QString &source, const AddTorrentParams &params)
 {
-    MagnetUri magnetUri(source);
-    if (magnetUri.isValid())
-        return addTorrent_impl(CreateTorrentParams(params), magnetUri);
+    // `source`: .torrent file path/url or magnet uri
 
-    if (Utils::Misc::isUrl(source)) {
+    if (Net::DownloadManager::hasSupportedScheme(source)) {
         LogMsg(tr("Downloading '%1', please wait...", "e.g: Downloading 'xxx.torrent', please wait...").arg(source));
         // Launch downloader
         Net::DownloadHandler *handler =
@@ -2110,6 +2107,10 @@ bool Session::addTorrent(QString source, const AddTorrentParams &params)
         return true;
     }
 
+    const MagnetUri magnetUri {source};
+    if (magnetUri.isValid())
+        return addTorrent_impl(CreateTorrentParams(params), magnetUri);
+
     TorrentFileGuard guard(source);
     if (addTorrent_impl(CreateTorrentParams(params)
                         , MagnetUri(), TorrentInfo::loadFromFile(source))) {

src/base/bittorrent/session.h

@@ -469,7 +469,7 @@ namespace BitTorrent
         void banIP(const QString &ip);
 
         bool isKnownTorrent(const InfoHash &hash) const;
-        bool addTorrent(QString source, const AddTorrentParams &params = AddTorrentParams());
+        bool addTorrent(const QString &source, const AddTorrentParams &params = AddTorrentParams());
         bool addTorrent(const TorrentInfo &torrentInfo, const AddTorrentParams &params = AddTorrentParams());
         bool deleteTorrent(const QString &hash, bool deleteLocalFiles = false);
         bool loadMetadata(const MagnetUri &magnetUri);

src/base/net/downloadmanager.cpp

@@ -29,6 +29,8 @@
 
 #include "downloadmanager.h"
 
+#include <algorithm>
+
 #include <QDateTime>
 #include <QDebug>
 #include <QNetworkCookie>
@@ -210,6 +212,15 @@ bool Net::DownloadManager::deleteCookie(const QNetworkCookie &cookie)
     return static_cast<NetworkCookieJar *>(m_networkManager.cookieJar())->deleteCookie(cookie);
 }
 
+bool Net::DownloadManager::hasSupportedScheme(const QString &url)
+{
+    const QStringList schemes = instance()->m_networkManager.supportedSchemes();
+    return std::any_of(schemes.cbegin(), schemes.cend(), [&url](const QString &scheme)
+    {
+        return url.startsWith((scheme + QLatin1Char(':')), Qt::CaseInsensitive);
+    });
+}
+
 void Net::DownloadManager::applyProxySettings()
 {
     auto proxyManager = ProxyConfigurationManager::instance();

src/base/net/downloadmanager.h

@@ -103,6 +103,8 @@ namespace Net
         void setAllCookies(const QList<QNetworkCookie> &cookieList);
         bool deleteCookie(const QNetworkCookie &cookie);
 
+        static bool hasSupportedScheme(const QString &url);
+
     private slots:
     #ifndef QT_NO_OPENSSL
         void ignoreSslErrors(QNetworkReply *, const QList<QSslError> &);

src/base/search/searchpluginmanager.cpp

@@ -50,7 +50,6 @@
 #include "base/utils/bytearray.h"
 #include "base/utils/foreignapps.h"
 #include "base/utils/fs.h"
-#include "base/utils/misc.h"
 #include "searchdownloadhandler.h"
 #include "searchhandler.h"
 
@@ -198,7 +197,7 @@ void SearchPluginManager::installPlugin(const QString &source)
 {
     clearPythonCache(engineLocation());
 
-    if (Utils::Misc::isUrl(source)) {
+    if (Net::DownloadManager::hasSupportedScheme(source)) {
         using namespace Net;
         DownloadHandler *handler = DownloadManager::instance()->download(DownloadRequest(source).saveToFile(true));
         connect(handler, static_cast<void (DownloadHandler::*)(const QString &, const QString &)>(&DownloadHandler::downloadFinished)

src/base/utils/misc.cpp

@@ -414,14 +414,6 @@ QList<bool> Utils::Misc::boolListfromStringList(const QStringList &l)
     return ret;
 }
 
-bool Utils::Misc::isUrl(const QString &s)
-{
-    static const QRegularExpression reURLScheme(
-                "http[s]?|ftp", QRegularExpression::CaseInsensitiveOption);
-
-    return reURLScheme.match(QUrl(s).scheme()).hasMatch();
-}
-
 QString Utils::Misc::parseHtmlLinks(const QString &rawText)
 {
     QString result = rawText;

src/base/utils/misc.h

@@ -71,7 +71,6 @@ namespace Utils
         };
 
         QString parseHtmlLinks(const QString &rawText);
-        bool isUrl(const QString &s);
 
         void shutdownComputer(const ShutdownDialogAction &action);
 

src/gui/addnewtorrentdialog.cpp

@@ -227,11 +227,11 @@ void AddNewTorrentDialog::saveState()
     settings()->storeValue(KEY_EXPANDED, m_ui->toolButtonAdvanced->isChecked());
 }
 
-void AddNewTorrentDialog::show(QString source, const BitTorrent::AddTorrentParams &inParams, QWidget *parent)
+void AddNewTorrentDialog::show(const QString &source, const BitTorrent::AddTorrentParams &inParams, QWidget *parent)
 {
     AddNewTorrentDialog *dlg = new AddNewTorrentDialog(inParams, parent);
 
-    if (Utils::Misc::isUrl(source)) {
+    if (Net::DownloadManager::hasSupportedScheme(source)) {
         // Launch downloader
         // TODO: Don't save loaded torrent to file, just use downloaded data!
         Net::DownloadHandler *handler = Net::DownloadManager::instance()->download(
@@ -240,27 +240,27 @@ void AddNewTorrentDialog::show(QString source, const BitTorrent::AddTorrentParam
                 , dlg, &AddNewTorrentDialog::handleDownloadFinished);
         connect(handler, &Net::DownloadHandler::downloadFailed, dlg, &AddNewTorrentDialog::handleDownloadFailed);
         connect(handler, &Net::DownloadHandler::redirectedToMagnet, dlg, &AddNewTorrentDialog::handleRedirectedToMagnet);
+        return;
     }
-    else {
-        bool ok = false;
-        BitTorrent::MagnetUri magnetUri(source);
-        if (magnetUri.isValid())
-            ok = dlg->loadMagnet(magnetUri);
-        else
-            ok = dlg->loadTorrent(source);
-
-        if (ok)
+
+    const BitTorrent::MagnetUri magnetUri(source);
+    const bool isLoaded = magnetUri.isValid()
+        ? dlg->loadMagnet(magnetUri)
+        : dlg->loadTorrent(source);
+
+    if (isLoaded) {
 #ifdef Q_OS_MAC
-            dlg->exec();
+        dlg->exec();
 #else
-            dlg->open();
+        dlg->open();
 #endif
-        else
-            delete dlg;
+    }
+    else {
+        delete dlg;
     }
 }
 
-void AddNewTorrentDialog::show(QString source, QWidget *parent)
+void AddNewTorrentDialog::show(const QString &source, QWidget *parent)
 {
     show(source, BitTorrent::AddTorrentParams(), parent);
 }

src/gui/addnewtorrentdialog.h

@@ -68,8 +68,8 @@ public:
     static int savePathHistoryLength();
     static void setSavePathHistoryLength(int value);
 
-    static void show(QString source, const BitTorrent::AddTorrentParams &inParams, QWidget *parent);
-    static void show(QString source, QWidget *parent);
+    static void show(const QString &source, const BitTorrent::AddTorrentParams &inParams, QWidget *parent);
+    static void show(const QString &source, QWidget *parent);
 
 private slots:
     void showAdvancedSettings(bool show);

src/gui/mainwindow.cpp

@@ -38,7 +38,6 @@
 #include <QMimeData>
 #include <QProcess>
 #include <QPushButton>
-#include <QRegularExpression>
 #include <QScrollBar>
 #include <QShortcut>
 #include <QSplitter>
@@ -61,6 +60,7 @@
 #include "base/bittorrent/torrenthandle.h"
 #include "base/global.h"
 #include "base/logger.h"
+#include "base/net/downloadmanager.h"
 #include "base/preferences.h"
 #include "base/rss/rss_folder.h"
 #include "base/rss/rss_session.h"
@@ -1296,7 +1296,7 @@ void MainWindow::dropEvent(QDropEvent *event)
     for (const QString &file : asConst(files)) {
         const bool isTorrentLink = (file.startsWith("magnet:", Qt::CaseInsensitive)
             || file.endsWith(C_TORRENT_FILE_EXTENSION, Qt::CaseInsensitive)
-            || Utils::Misc::isUrl(file));
+            || Net::DownloadManager::hasSupportedScheme(file));
         if (isTorrentLink)
             torrentFiles << file;
         else
@@ -1628,11 +1628,7 @@ void MainWindow::showNotificationBaloon(QString title, QString msg) const
 void MainWindow::downloadFromURLList(const QStringList &urlList)
 {
     const bool useTorrentAdditionDialog = AddNewTorrentDialog::isEnabled();
-    for (QString url : urlList) {
-        if (((url.size() == 40) && !url.contains(QRegularExpression("[^0-9A-Fa-f]")))
-            || ((url.size() == 32) && !url.contains(QRegularExpression("[^2-7A-Za-z]"))))
-            url = "magnet:?xt=urn:btih:" + url;
-
+    for (const QString &url : urlList) {
         if (useTorrentAdditionDialog)
             AddNewTorrentDialog::show(url, this);
         else

src/gui/rss/rsswidget.cpp

@@ -48,7 +48,6 @@
 #include "base/rss/rss_feed.h"
 #include "base/rss/rss_folder.h"
 #include "base/rss/rss_session.h"
-#include "base/utils/misc.h"
 #include "addnewtorrentdialog.h"
 #include "articlelistwidget.h"
 #include "autoexpandabledialog.h"
@@ -249,7 +248,7 @@ void RSSWidget::on_newFeedButton_clicked()
 {
     // Ask for feed URL
     const QString clipText = qApp->clipboard()->text();
-    const QString defaultURL = (Utils::Misc::isUrl(clipText) ? clipText : "http://");
+    const QString defaultURL = Net::DownloadManager::hasSupportedScheme(clipText) ? clipText : "http://";
 
     bool ok;
     QString newURL = AutoExpandableDialog::getText(

src/gui/search/pluginselectdialog.cpp

@@ -43,7 +43,6 @@
 #include "base/net/downloadhandler.h"
 #include "base/net/downloadmanager.h"
 #include "base/utils/fs.h"
-#include "base/utils/misc.h"
 #include "autoexpandabledialog.h"
 #include "guiiconprovider.h"
 #include "pluginsourcedialog.h"
@@ -337,7 +336,7 @@ void PluginSelectDialog::askForPluginUrl()
     bool ok = false;
     QString clipTxt = qApp->clipboard()->text();
     QString defaultUrl = "http://";
-    if (Utils::Misc::isUrl(clipTxt) && clipTxt.endsWith(".py"))
+    if (Net::DownloadManager::hasSupportedScheme(clipTxt) && clipTxt.endsWith(".py"))
       defaultUrl = clipTxt;
     QString url = AutoExpandableDialog::getText(
                 this, tr("New search engine plugin URL"),